Looking for an eCommerce solution to my unique setup

My need is simple, yet I cannot figure it out. I have an html form that requires user input to enter a store name and amount. That it's. I then have javascript code that dynamically calculates price based on the user inputs for both of those inputs.
I don't need any payment processor. My business relies on these three things alone.
So, I need to take those three values, the two entered and then the dynamically calculated price, and display them in a cart-like "thing". And then when the user…
Looking for an eCommerce solution to my unique setup

See original post by BlueRiver89