202274 Edit Existing Site

Hi, I am looking to have a few edits done to the functionality of my site [login to view URL], I need a bunch of things done to the checkout process, including integrating PayPal IPN as the current system is set for manual updating of the payment status. There are a bunch of little things here and there throughout the admin panel and the site in general that I will need edited. The biggest part of this project is that I want the script taken out of this site and prepared to be sold. For this I will need the current template removed and just change it to a very generic look that can be easily changed by the people who purchase the script. I will also need an install script created that will walk the user through the set up process, ex. they will visit the [login to view URL] file and enter their desired admin username and password and also their database name, database username, and database password and the script will then run the sql file to set up the database. Like I said most of the stuff that needs to be done is very little stuff that is mostly just cosmetic to get it ready for sale. Thanks