I'm looking into buying a 6.5hp or maybe higher hp motor from Harbor Freight. They're surprisingly cheap for being a full gas motor. May have an old dune buggy chassis laying in the back field courtesy my brother-in-law. Weather or not the tires, axles, and steering column are still good is another thing, but hopefully the frame hasn't rusted too bad. Ever since I found out about these cheap engines my mind has gone into overdrive about starting sooner than later now. But for now, I need to save money. Had to get a new truck and it's drained my savings account badly lol