I want to check out products with a 'fake' currency

Hi everybody,
In our app Feeting we want to reward users for doing certain things together. For instance, for every 1000 steps users do together they’ll earn 1000 feetcoin.

The idea is that they can spend these feetcoins in a simple store and I was wondering if we could use webflow e-commerce for this. We’ll start with three simple products, to see if people are interested in it.

After checking out we’ll take care of everything in a manual way. If it works, we can further automate it. Looking forward to hearing your thoughts and advice. Thanks!