I have little similar plans on my sr too. I was thinking on tilting the boat with inflated tubes, but having something soft between the tube and the garage floor. Console and engine remowed. I don't somehow like to have the weight of the boat on the empty tubes, worried about the radical change in shape from inflated might open some old seams..
No idea what is the right way top do it though.
fun on a boat is inversely proportional to size...sort of anyway