Duplicate all functionality of [url removed, login to view] with some customization.
Most important the site must be user friendly for both advertisers and administrators.
Must be built with an eye towards easy future modifications
Must be able to accept payment from Paypal and major credit cards
Must have an Administrative and moderation control panel
Must have a way for advertisers to upload coupons or data via the front end and pay for advertisements - manage their ads and recurring payments.
Must have payment gateway
Please thoroughly review the functionality of [url removed, login to view] before bidding.