I don't see why you would need all that stuff. A decent digital camera and some know how would get you good enough results. If you're aiming at true SPH niche then technical quality isn't going to matter that much. Let's face it most of the stuff I jack off to is videos off the net recorded off someones webcam.
It's getting the girls to do it and do it good and finding guys who want to be subjected to SPH on camera that would be the problem. Check out the
Hey Little Dick website. The guy that runs that site used to post on their forums a lot and he said it was difficult finding the right kind of guys to be in the videos. Too many guys with 6" or more.