I've tried many forms of shops on this website. From "real" e-commerce to plain classifieds. Both is a pain in the neck to be honest. A shop requires setting up a lot of things before you can actually sell something and I am not an official shop. I'm just trying to sell my stock. The classifieds page was working okay but the developer did one (1) update per year if lucky and was not actively fixing bugs.
So now what? I'm just going to create a few pages, split up in models and that's it. Paypal button under it and done. You want it, you click the button, pay and you'll get it.