Get an off-the-shelf, shaft-driven awd and you can go down to around a 19turn motor on the stock speed controller. Get some 3600mAh battery packs and change to a quicker ratio drive sprocket. If you buy a kit I can assemble it for you. Give me an excuse to re-tune mine. I have a drift/road setup and an off-road truck, and the missus has a an off-road race buggy that shits on both of them... but I'll have the last laugh...