Go kart/minibike motors

I have available 5x horizontal shaft engines: - Briggs 1.0 HP - Briggs 1.5 HP - Briggs 2.5 HP - Briggs 5.0 HP - Honda 13 HP None are in working order but all turn freely. I recently purchased all rebuild parts necessary to do full rebuild of each (rings, bearings, seals, etc.) Also including an electric start kit (flywheel magneto etc) for the larger motor. Sold together the price is 200$ for everything which does not even cover the cost of parts. My loss your gain. Together these could make an awesome parent/child project.