Wordpress form posting with dynamic information

So we have this wordpress site with a custom theme that was built using Laravel. It was made by a developer who is no longer with the company. I have been trying to pick up where he left off but this is new to me and I'm still learning. So there is a "configurator form"

$addons = get_field('create_add_on', get_the_ID());

@endphp
@if($addons)
<div class="section-title">
  Product Configurator <i class="fas fa-cog" aria-hidden="true"></i>
</div><!-- /.section-header -->
<form action="<?php echo esc_url( admin_url('admin-post.php') ); ?>" method="post" class="configurator">
  <input type="hidden" name="action" value="brochure_enquiry">
  <nav>
    @include('brochure.configurator.parent-tabs')
  </nav>


  <div class="tab-content" id="nav-tabContent">

    @foreach($addons as $addon)

    @php
    $conditions = App::conditions($addon);
    $index = $loop->iteration;
    @endphp



    <div class="tab-pane fade show group-tab {{$loop->iteration == 1 ? 'active' : ''}}"
      data-group="group-{{$loop->iteration}}" id="nav-{{$index}}" role="tabpanel" aria-labelledby="nav-{{$index}}-tab">
      <div class="row">

        <div class="col-12 col-lg-9 col-xl-12 items-container">
          <div class="row  ">

            @if($addon['acf_fc_layout'] === "attribute_group")
            @include('brochure.configurator.attribute')

            @else

            @include('brochure.configurator.group')

            @endif

          </div><!-- /.group -->
        </div><!-- /.row -->
      </div><!-- /.row -->
    </div>

    @include('brochure.configurator.contact-form')

    @endforeach

  </div>

</form>


<script id="selected-template" type="text/template">
  <div class="selected-item-form d-flex align-items-center" data-id="$id">
  <div class="selected-item-image">
    <img src="$image" alt="">
  </div><!-- /.select-image -->
  <div class="item-details">
    $title
  </div><!-- /.item-details -->
</div><!-- /.selected-item-form -->
</script>
@endif

It's using wordpress admin post as an action so it triggers in functions.php. What I'm trying to do is write the function to pull in the "selected items" that the customer picks and send it in an email. I've tried to create a hidden input field in the contact form and populate it with the selected addons. But I can see the "Selected Items" is running a script to get the $title and $image for each selected item and I'm not sure how to POST that to the form to an email. This is the contact form blade:

@if($loop->last)

<div class="tab-pane fade show  " id="nav-{{$loop->iteration + 1}}" role="tabpanel"
  aria-labelledby="nav-{{$loop->iteration + 1 }}-tab">
  <div class="row">
    <div class="col-sm-12 col-lg-4 col-xl-3 selected-items p-0 ">
      <div class="selection-group-items">
        @foreach($addons as $addon)
        <h4>
          Selected {{$addon['group_title']}}
        </h4>

        <div class="selected-group-items-inner group-{{$loop->iteration}}">
          <div class="empty">You have not selected any {{$addon['group_title']}}</div><!-- /.empty -->
        </div><!-- /.selected-group-items -->
        @endforeach

      </div><!-- /.selection-group-items -->
    </div><!-- /.col-sm-12 col-lg-9 -->

    <div class="col-sm-12 col-lg-8 col-xl-9">
      <div class="configurator-form">
        <div class="row">
          <div class="col-sm-12">
            <h2>Your Details</h2>
          </div>
          <div class="col-sm-12 col-lg-6"><label for="first_name">
              Your name<br />
              <input required type="text" name="name" placeholder="John" id="">
            </label></div><!-- /.col-sm-12 col-lg-6 -->
          <div class="col-sm-12 col-lg-6"><label for="email">
              Your Email<br />
              <input required type="email" name="email" placeholder="john@example.com" id="">
            </label></div><!-- /.col-sm-12 col-lg-6 -->
          <div class="col-sm-12 col-lg-6"><label for="phone">
              Landline Number <br />
              <input type="text" name="phone" placeholder="028 9011 2345" id="">
            </label></div><!-- /.col-sm-12 col-lg-6 -->
          <div class="col-sm-12 col-lg-6"><label for="phone">
              Mobile Number <br />
              <input required type="text" name="mobile" placeholder="077 1234 1234" id="">
            </label></div><!-- /.col-sm-12 col-lg-6 -->


          <div class="col-sm-12">
            <h2>Your Address</h2>
          </div>
          <div class="col-sm-12 col-lg-6"><label for="address">
              Address Line 1<br />
              <input required type="text" name="address" placeholder="address" id="">
            </label></div><!-- /.col-sm-12 col-lg-6 -->
          <div class="col-sm-12 col-lg-6"><label for="address2">
              Address Line 2<br />
              <input  type="text" name="address2" placeholder="address" id="">
            </label></div><!-- /.col-sm-12 col-lg-6 -->
          <div class="col-sm-12 col-lg-6"><label for="town">
              Town<br />
              <input required type="text" name="town" placeholder="town" id="">
            </label></div><!-- /.col-sm-12 col-lg-6 -->
          <div class="col-sm-12 col-lg-6"><label for="postcode">
              Post Code<br />
              <input required type="text" name="postcode" placeholder="FT40 6TF" id="">
            </label></div><!-- /.col-sm-12 col-lg-6 -->
         
         @foreach($addons as $key => $addon)
                
        <input id="addons" name="addon[<?= $key ?>]" type="hidden" value="<?=$addon['title'] ?>"            
        
        @endforeach
          <div class="col-sm-12">
            <hr>
            <button type="submit" class="btn btn-primary">
              Request a call
            </button>
          </div>
        </div><!-- /.row -->
      </div>
    </div>
  </div><!-- /.row -->


</div><!-- /.tab-pane -->

@endif

I think I need to get the $title from inside the "selected-template" div into a hidden field in the form so I can $_POST it inside the functions.php, put the array into a string and send it in an email.

I hope someone can help.

Thanks