At first I was concerned you were asking about some forbidden products or something, but it was just your brakes on your Traxxas vehicle - hope you got it sorted! =)
As for the build, I've decided I want an ON BOARD dvr function. (recorder on the car)
Originally I was using the GoPro and it would record and output the video. I hated the field of view and its HD sucks for video transmission - 16:9 instead of 4:3.
So I'm thinking of replacing the PIXIM cam with a 720P 60fps dvr: PZ-2 Mini! It's awesome, I was originally going to get the Horyzon V3 from Foxtech @ $150 + shipping, but I found this PZ-2 Mini for $70 after 2 day shipping! Takes a mini TF card.
I'm about to hit order I just need to do a bit more research. I'm finding myself stuck where I am with wiring though:
I've wired up the ESC completely - big step - but now comes the cameras to GPS/OSD then out to the transmitter.
Also, wiring up the IR LEDs has proven to be a MUCH bigger pain in the butt, they don't fit inside my flashlights the way I imagined! Their contacts are too far apart, and would short against the side of the casing, and if I bend them and ruin ONE I've lost it all because they came in a $70 camera that takes 2 weeks+ to get here.
Once I get over those two, the weather will have hopefully cleared up and I'll get some tests going with some HD VIDEO and OSD FPV video! Hoorah to that