the 2 spd stadium truck with the .12 would be awsome especially since the NMT converts EASILY into an onroad vehicle.
(i recently go onroad tires, new rims, stiff springs, and a high performance air filter for mine but haven'y had a chance to test...so it should be interesting)
also HPI left holes for extreme onroad setups so try it...cause you could just end up with a one of a kind...