I work for Edge Interactive. It's a content licensor and producer, and it's been in the business for over 15 years. We've got a library of well over a million high-resolution stills and several thousand hours of video.
We own rights to the entire David Slaughter collection (including the Master Len stuff), plus maybe twenty other big names (e.g. Carlos Batts, Mike Hammer, Carter Stevens, Yukimura Haraki, Efrain Gonzalez, Larry Todd, Charles Gatewood). We also own a lot of vintage porn. Moreover, we represent about a hundred photographers and models nationwide, which means we could produce content for you to specifications, quite cheaply too. We have Lavender Rayne on call, and are quite interested in producing some Kink-grade BDSM with her. She has worked for Kink in the past.
At any rate, we also run a legacy B2C site called The Picticon (www.picticon.com); it's a bit behind the times, but still manages to make us some money. Maybe a third of our collection is up on it, more so in regard to stills than video. We're willing to sell anything and everything you can see on that site, and every reasonable offer will be accepted.