One thing to point out to them is that usually they are dubious to having the front of their car way up in the air but until they try it, they don't understand that after the K-frame, engine, exhaust, radiator, transmission etc. is removed, what remains ahead of the firewall weighs practically nothing. Two strong guys can easily pick the front of the car up and when maneuvering it back down over the powertrain you can push it about with a finger. My two younger brothers do this by themselves (and I think they prefer it that way) on 440 and Hemi A-bodies with show quality paint.