Placed the scales ont he floor and made ramps for the wheels to climb onto the blocks and scales. Tried using a hand operated winch to pull the plane but the scales were just being pushed way by the wheels. Also, the winch (brand new) was getting stuck and it was hard to release the gears. I ended up just pulling the plane and using momentum to get the wheels over the scales. I was getting around 720 lbs of total weight which is on the low side. I'll re-weigh tomorrow.