i made my own also but plan on buying his motor mount because its so adjustable, i think he sells it alone, check out mine i built a brace underthe truck to reduce flex, very solid but no gearing options
I bought a nemesis motor from fine design and it came with two alum. pipe clamp style mounts so I just set my gear gap, marked the hole locations on the stock revo chassis.The outside holes just missed the chassis so I put a small 1 3/4" X 2 1/4" X 1/8" thick piece of flat alum. right under the mounts and drilled four holes and bolted the mount from the bottom for extra support.