Clone of Affiliate Site (PHP)

Hi
I am looking to create something like GDi*teambuilder*ws
---
here are the key features of the site..
date when user joins
you will be able to see the user name... contact user...
a news feature
a support ticket feature
--- a back office email downline feature
** must be able to chose which downline member you want to email.. or you can send to downline all .. sends out a a email once bi weekly reminding user they have emails..
users get their own affiliate page. ex: site.com/username
if users come to the site with out a refferal the site needs to auto place another users page up: see GDi*teambuilder*ws for example
users need to sign up with two programs to join
users need a back office messaging system
must be able to bulk email users
must auto back up,
must be able to send out newsletters
must be able to add other programs in the back office like GDi*teambuilder*ws
must have a built in one time offer page where users can upgrade account..
must show status of user in downline and page.. example >. f for free .. p for pro
must have a support ticket system in the back office.
must have a text and banner ad rotator like sample site in back office
Users back office
users are able to use the custom banners:
-- They will be given banner html or they can get a banner link..
users are able to use the custom splash pages:
---user can choose from 10 different splash pages
splash pages are provided with a custome link..
example: site.com/splash/username
when the link on the splash page is click it's sent to the referal site of the user...
any more questions please contact me..
20 Days Max to get this project done..