
Stop tractor with a bolthole at the top, and just roll the hoist into place. I ground a taper on the bolt the weight hangs on to help guide it in the hole and put a nut and washer on the bolt for safety while picking up and moving the weight to a tractor. One in place simply slip the side bolts in and tighten them, then roll the hoist away, move the tractor enough to get to the other 2 bolts and install them. If you need to shift it a little to get second ones in, just hook the bolt in the center hole.

I believe someone else on the forum built one similar to this last year.