I need to make a custom product cart and custom checkout

Hello everyone, I am just praying for help. Please help me

I need to make a custom shopping cart for products and add products to it and a custom checkout with stripe payment.

I do this because the standard pages that webflow offers, they are not suitable for me, they do not have the ability to add their own inputs.

I need that when a person adds an item to the cart, they should have the choice of buying it for themselves or as a gift, and if it’s a gift, then there should be fields for entering data on who the gift will be addressed to. And then I need to send all this data to an external server upon successful payment. But I know how to do that. I just need a functioning shopping cart page and a payment page.

Please help me with this, I’m not getting anywhere