A buddy of mine had his Revo, and blew up 2 of this nitro Engine... So I helped him converted his Revo into brushless... MMM + hobbycity KD36 motors(he bought it without knowing how poopy it was)...
It was a fairly easy conversion, took maybe less then two hours to make the mount... And while browsing some forums, I saw an add for a RTR Revo with OS .18 for sale... $200 !!! I jumped on that right away.. So I went to pick it up Friday, and made the mount for it also..
Ended up selling the Radio gear, ez start, engine, fuel tank and integy guard, wheels/tires, fuel.. so I pretty much paid $80 for the roller...