Dating Website / Manager

I am seeking estimates for a Dating website that serves a certain region. *The site will function similar to [login to view URL], with monthly membership renewal. *Clients will need to contact each other via e-mail, instant messaging, and public chat rooms. (free accounts are limited to a certain number of messages they can send.) ~I do need where personal e-mail information, skype id's, etc. can't be swapped through the free accounts.~ *This is a typical dating site, just concentrated on one particular region. *There need to be multiple account types (ie. Gold Member, Platinum Member, Diamond Member, etc.), and these packages need to be modified by my staff from time-to-time. *Must feature automated billing for accounts (or I can set this up through [login to view URL]) *Customer Billing information should be exportable to Open Office, Microsoft Word, Excel, etc. With that said, I am in no big rush to have job completed, but I don't want to take all year either. I will supply Website Design, Graphic, and Content. You will supply all programming, content managment, etc.