379572 Clone: List Cleaner Code

I want a clone of List Cleaner [login to view URL] However, I want it to look better, perhaps I can design it, then code it to be a program? I want it to be able to import text, cvx, xlm, as well as export them to whatever file type. Also, will need a about my program, I have a name I want on it. Also, I need a way for them to be limited only 500 emails for free user, then for them to purchase it through my site they get a unique serial number that will unlock the program to do unlimited email filtering.