I am going to run a brake air line to the rear of the coach to activate a roadmaster brake in the toad.

The Spartan E2000 chassis is air over hydroalic and there are two master cylinders. The air chambers have a plug where you can attach an air line for the toad.

According to Spartan the rear brakes activate before the front, therefore I plan on tapping into the front chamber to supply air to the toad. I may have to put a pressure regulator somewhere in the line as I do not want the toad to try stopping the Barth.

Gary,
Connect it to the rear and Do Not Use a regulator. The Brake master will be pushing against a "Dead Pedal" (No Assist) so it will need all of the help it can get.