OK, I did my search. A web site called etrailer has a set up that looks pretty good. They use the Titan electro hydraulic actuator capable of 1500 lbs, it uses a device much like a current ABS actuator that uses an electric pump to generate hydraulic pressure to apply the brakes. It also uses a Prodigy 90885 control module so it is a computer driven hydraulic system. Those two components cost near 800 and then you need the disc brake conversion itself, they list a system by Kodiac. Well that's the nickel tour.