Opencart custom product, how to do it right?

Question

opencart

Hello, I plan to make a store in which there will be only 20-30 products and, most importantly, 15 additionally completely custom!
What I mean: one product as a hotel page with a lot of options, a lot of price selection sliders, price calculation depending on the options (I'll show it on the screen). All options are written in javascript. (the layout layout is still available)
How to pass these values ​​to the order formation? To display these options in the shopping cart.
And will such a trick work with the creation of a hotel page for each product in the opencart format (twig or tpl page for this product), since all products are unique in design and options.
On the screen is about what will happen.