Back your delivery vehicle up to where you want it and slide one end out until it almost wants to tip out. Then slowly let one end down, then pick up the other and with your Legs slowly set it on top of a 2x4 on the floor. 2x4 will save your fingers. I do this stuff all the time in my shop by myself. It's a "can of corn". Guess I work by myself way too much. I'm in Oly if your close let me know I'll help. I have a pick me truck too.
Good luck. Wiz