Here is the unit that I got from ABS Power Brake.
http://inlinethumb30.webshots.com/48989/2701798080096773078S600x600Q85.jpghttp://inlinethumb21.webshots.com/47572/2320770950096773078S600x600Q85.jpgI have yet to put it to use as the truck that it is in is not finished yet but it was an easy bolt in as it mounts to the frame using the holes for the stock master cylinder and uses the stock pedal. In the picture it is shown with a hydro-booster and a dual circuit master cylinder. ABS supplied this entire unit I let them know what type and size brakes and the diameter of the wheel cylinders and that there were two per brake and they ensured that I would have the right master for the job. I opted to use a remote reservoir so it could be mounted for better access.
Hope that this helps I think that the mount it self would be pretty easy to build yourself but must say I was very happy with the help and service I got from ABS.