Well, there are a couple ways here. First, if you are talking about starting your own tube site and want that many videos then you should think about licensing or buying mass quantities from content providers. There are many good ones here on GFY.
The other thing, if you are looking purely for Sponser vids, is to use the Affiliate Programs mass dump feature. This way you can export mass quantities for your new tube.
You can also scrape vids from other tubes but I do not know how much money these CJ-type tubes actually make.
Good luck!!
