I just put a 5 speed in a c-50, I made a lift that sat on the cab floor over the trans, I took the trans shift cover off & made a plate that bolted to the trans. I welded a flat iron where I thought the center was.
I driled several holes in it to get it to balance.
Put a boat winch on it to crank it up or down.
If I needed to move the trans in any way I just moved the lift assy.
This trans with a PTO was about 240# Worked like a charm.
If I knew how to put pix on here I would, It realy worked good.