I think @chiefmonkey is on the right track. Stripe isn’t directly integrate-able with Webflow due to the need for server-side code to be manipulated. Maybe Webflow will work something out in the future, but for now, I can attest that @foxy is an amazing route to go. There is a monthly fee, but It’s WELL worth the price of their amazing customer service alone.
They will walk you through every step necessary to get up and running, and it seems there’s not much they can’t figure out how to do over there. They are super personable and extremely helpful.
I sound like a spokesperson, but I only know this because I just finished up with them on a site I made for a client. You can check it out HERE. Good luck man!