Thanks to all for the inputs and the links to different sites. Lot of helpful tips and gadgets in those sites.
Found some Master brand tire lube. That stuff is definitely better to work with than liquid dish soap.
Rim protectors cut from an empty shampoo bottle.
Mini Vicegrip clamped to the edge of the rim to keep one end of the bead in place while levering the other side over.
Avon 180/55 mounted with only two swear words ;D
Getting the beads to seat was a challenge - it would catch air no problem, but one area refused to pop out. For a while.
Now the balancer: Picked up a straight (not all of the ones in the bin were

) 5/8 X 12" bolt as a substitute axle and a pair of SKF EE5TN9 open race ball bearings. Set everything up so the wheel rolled on the bolt which was through the bearings which sat on two chair backs. Worked like a charm. Sensitive to 3 grams or less as tested by putting that much on different spots after getting the wheel balanced. The beauty is that the balancer will fit in a drawer when not in use - important since the shop is out of floor and wall space.
A future improvement to the balancer will be to fashion two pillow blocks for the bearings to rest squarely in and maybe a take-apart stand to replace the chair backs.