Hey, basically I need a simple login system using MYSQL

With a paypal ipn payment system.

So basically, the payment page should include username: and password: + email:

And when he/she fills in it, they then get redirected to the paypal ipn when they pay there user get's added to the mysql where they can login.

Can someone make/ give me something like this?

I'm willing to pay 10$ via paypal for this.