Re: Motor Weight
If you wanted it to be somewhat safe, figure on a long pipe, that can support 300 or so lbs, and four guys to lift, a fifth to unbolt, and you best have a place to rest the motor once its off.
I've done a few by myself, but not by choice. Its enough weight to really hurt yourself with and dropping a skeg on a toe would almost certainly mean amputation.
They do seem to weigh less when standing up, lay it down there there's even less places to grab. The pan really doesn't give you an area to grab, and the cover won't stay on that way. Once it's off, it can be a three man lift, two on the power head end with a pipe on the lift bracket, and one on the lower unit.
Newer motors lost that lift bracket, you need a flywheel puller bolted to the motor with an eye bolt attached to lift those after about 1987.