With 7+ years experience with PHP and MySQL, the important thing about a escrow website is Security. I have built my own PayPal IPN system, which is very secure and tested. I can finish this project within 15 days. I need 10 days to build, 5 days to test and fix any bugs that may come up. You can check out my credentials at www.fglstudios.net. Please, if you have any questions, feel free to ask. Thank you and have a good day.