I think I will see if I can make it out of 50 x 25 tube and see how it handles it. The scissor jack might help and it can be run up and down quickly with a battery drill
NormK, I recently tried lifting a corner of my car with an 18v cordless drill and scissor jack, and even on low gear, it couldn't do it. Maybe with this load, it could work though.
Great concept Carbymaster, but I don't have the confidence I could construct that myself.