Web based PHP MYSQL BMS Software

I am looking for a professional and clean Business managment software similar to [login to view URL] that is fully functional and can print in PDF and DOC. have the ability to export to excel spreadsheet details to transactions. Also have a section for customers to be able to login in and be able to pay invoice amount either with credit card check or paypal. I am looking in to getting this script or program created in the next few days. I also want it easy to install with little hands on. upload, create DB, and run install pages to create tables. It seems like a lot but well worth your time to build for me. If you do a good job i can have more work for you to do with a bigger payout.