Not a lot of experienced webmasters will jump on helping you with a site when we have no idea what the finished site will look like and can't be sure what kind of content you'll be using.
Will the "tons of amateur/homemade videos" be user-submitted? Or is this content you're shooting yourself? Or is it all purchased content? Some mix of those?
Also, will this be your first-ever adult membership site? Kind of sounds like it since you're asking for help with things an experienced operator would certainly know about.
Finally, you mention free ad space as a possible payment, but if this is to be a "massive membership" site then you won't want to have ads on your tour pages (and ads inside the members area aren't always a good idea). And of course ad space is most valuable on sites with plenty of traffic, which I'd guess you won't have when you open for business in a couple of weeks.
Just some things to think about, and maybe to talk about here if you like.
