A web store to sell my products (paypal)

I need a website like [login to view URL] but I need that to enable me to sell my products. If the pay via paypal, they they will be allowed to download. or I will give them an activation key. This is not urgent for me so you can do it in your free time. And it can be completed in 20 or less. my budget is maximum 50$ so don't bid more than that. It is a simple project and you don't need to add a full management system for that. Just to have a page to add my products and then a simple function to generate random keys for products. I have the checking part ready. and you don't need to do that part. just paypal/design/and a simple management will be enough. thanks