E-Commerce Website

Hello, I need an e-commerce web site with these features: 1) I need to collect data from customers - contact name, company/organization, phone, e-mail, etc., and an additional 3 or 4 fields for customized data. 2) I need to be able to set the price of items depending on the customer's characteristics, such as non-profits could purchase items at a lower or zero price. So, class A, class B, and class C customers each could purchase items for prices set for these classes. 3) I need to be able to take donations. Donations of various amounts would get recognitions of different kinds. For example, $100 = Sponsor, $1,000 = Benefactor, etc. 4) E-mail addresses collected through e-commerce transactions would have to be added to a mailing list, with the customer's permission. 5) I have design layouts, but we will be happy to look at your design ideas as well. Our servers run FreeBSD. I would prefer to use applications which exist in the FreeBSD ports tree as much as possible. My preferred applications are PHP/MySQL, but these are not absolute requirements; I would like to hear your proposal. I will submit 25% in escrow of total value to start, 25% will be escrow at the time of code presentation on our own server and rest of the 50% payment will be submitted in escrow and 100% will be released after the successful completion of project. Note: I will release the payment on completion. This project must be completed within 10 days, I will deduct $10 per day for delaying my project. Please don't bid if you are not comfortable with our terms. I will select provider as soon I will find reasonable bid and good programmer to do the job on time. Good luck!