ok so here are some pics of the brakes although i havent started on them yet.
here is one caliper i mounted just to see how it would work. they work amazingly to be honest. its gonna stop on a dime with 4 of these. you can see where i just drilled through the hub to mount the calipers just as Kaz had explained.
here is how i plan to run the cable and tubing. for both the front and back this should work to run the cable through the shock tower.
then this little part will need to be mounted on the front and rear top plates respectively to hold the cables in place and direct the cable toward the brake servo.
anyway, that is my plan but the only issue i may have is how to securely mount the cables to the servo arm, or to a rod which then connects to the servo arm. i plan to use a full servo arm and have the front brakes connect to one side and the rears to the other so that all 4 brakes are applied when the servo is actuated. here is a pic of all the parts in the integy disc brake set. perhaps someone can explain how all the parts are used when put on the baja. actually, thats not all the parts. the long connecting rod isnt in pic. that is my main question really. how is the cable attached to the connecting rod? in a special issue of "Radio Control Car Action" called "Desert and Off Road" there is a feature on a custom baja and it has the integy brakes with some "minor mods" made to it. it looks real nice but there is only one pic really where you can slightly see the setup. i am trying to see exactly how the system was ran.