186575 Site Map Script For Clients

I am looking to start a new site map website which will crawl and build site maps for google, yahoo etc. It will need to auto update the sitemap on the clients website by xml and not be modifyable by client. I need someone to be able to go to the site map website, create an account, free accounts will have to link via main index page and will have to have a checker to check this weekly and deactivate account when not seen till they update.. Paid clients will not have to link back.. It will need ftp area for the sitemap to be ftp into the account.. I will need to be able to add links into the xml rss area... I will be using [login to view URL] for payment gateway... I have to be able to email clients etc through system like a cms etc... auto map it dot com has an example but I want it feature rich.. I will promote the site with all my resources..I am a firm believer in letting the script pay for itself and pay least up front, so here is my offer.. I will accept bids for $250 or less and pay out 75% of the revenue to the programmer for one year through scriptlance, The builder of the site will get paid for one year from 50% of the proceeds through scriptlance if the bid is $251-$500