I have a carpet setup from back in the day when I ran the car. If interested shoot me your email address. It uses a variety of RC shox stuff and it does use the exotek chassis, however, you can mod as needed.

When running the center diff, I was using I think 7K front 5K Rear on carpet, extremely tight track.

A big thing to help with traction roll I found was to get the longer 12mm I believe rear ball studs and shim them up about 5mm. that really helped with traction roll.