Gregg, as my car is a DRB, I am using the 'Vette parts that it was designed to take. The DRB uses the whole front suspension & brakes (mine are from an '87 C4) - the upper & lower arms are alloy, light & very strong. Geometry is simple to set up & adjust by just shimming the front/back of the top arm mounts. The brakes are huge & simple (a single piston system) - not as exotic as the multi-pot AP's etc, but when you think that they do a damn good job on a car nearly twice as heavy as a GT40, they really do provide enormous stopping power for the low cost involved.
Another advantage of using the full 'Vette front setup is that with urethane bushes, you can get a civilised ride quality, together with good compliance.
The DRB rear uprights are designed to take C4 'Vette spindles & brakes - just bolt them in. I am using '88 brakes as these have a handbrake which works on the pads - a much better & simpler system than the earlier C4's which had a mini drum brake inside the rotor hub.
All in all, I think the 'Vette approach has a lot going for it - lots of capability for not much money, and if you want to upgrade the brakes later, the range of after-market options is huge and not all that expensive.
Kind Regards,
Peter D.