I just remembered the JConcepts J82, a 2wd 1/8 buggy conversion kit for the T4. Its big, looks awesome, its just over normal 1/10 weight, and with a light 1/8 setup its going to fly. Like novak HV motor, or speedpassions new slotless 2500kv motor with the MMPro on 3-4s.
The b4/t4 is known to be reliable, so it just might fit the description(hope thats proper english;-)
http://www.jconcepts.net/store/index...roducts_id=286
Thomas G