Freewebs/Geocities Clone

I am in need of a hosting development project- as geocities. I would like users to be able to sign up and choose a url that will then come off as "mysite.com/THEIRURL" and [login to view URL] - I need this site to be extremely easy back-end cms like for admin AND for users. I would like the users to choose from templates made by me (many different layout structures). (A page builder with our templates/graphics as well) I would like their to be a page editor as geocities for drag and drop (all features, uploading images, previewing, color picking, marquees, etc.) I would like there to be a library of HOW-TO's for HTML (I do not need the tutorials, just a way to implement this into the 'page editor' if the user needs it- and an easy way to upload new tutorials. I would also like to have a library of graphics/images by my company to be available to the users- I would like to have admin panel that allows me to: View users/view all user stats Upload graphics to library which automatically can categorize them and create a copy code for users. Have Google Ad banners rotating on certain placements of pages (different banner rotator script) I would also like a discussion/forum/tagboard for all users who have an account/website. (as freewebs has) Please ask LOTS OF QUESTIONS if you need clarification- also please show portfolio examples. Thank you!