hey,
what about installing the front break at the front diff, like they did it at the rear diff of the lrp buggy:
http://www.hpi-shop.at/assets/own/13...eam_detail.jpg
third pic in 1st row
like that you can keep the motor where it is, keep the rear break at the center. you only need a long, stable pushrod, you probably need to drill a slot into that beatuiful steering-plate to have enough space for the disc, maybe a little slice in the chassis as well. and you need a mount for the diskbrake. it might be very thight, but I think it should work. just take an "outdrive" or diffcup which can hold that disc. dunno how to describe it, but it's not that difficult I think.
it should be lighter and cheaper then these baja/fg-aftermarket breaks. sure, they're cool, but also expensive and heavy.
I don't think you should run a heavy truck like this whith the breaks of the esc. first problem is, there are only a few esc's around for 10s and w. proportional car breaks. maybe a mgm (which I don't favor) or Lutach's esc.
if you go for a boat/plane esc, if they have a break, its like full break or not.
I have a plane esc in my buggy conversion, it's great (solid, smooth, reliable) but the breaks are just cr*p. well, kinda got used to it.
you could take the hobbywing pentium hv, it can handle up to 12s, add some caps, probably a fan, and that's it. the're quite solid and have a good throttle.
btw, I really like that truck!
florian