I have a friend who has prototyped a motorized compressor lift for removing a compressor from a tall high seer condenser.
Aluminum construction with a motor and cable. It sits on top of the condenser and has a sliding plate so you can lower it to ground and lift the new one in and has wheels for easy transport.
He and I are talking about using the sliding plate as a bottom to make it so the device could also be used as a conventional dolly. That way one could remove the dolly from their service vehicle and make room for this device.
I would appreciate any feedback on this device as to whether you guys may think it might be something that you all could use.
Its a little pricey at this point around $650.00 but beats removing the condenser to get to the compressor. Let alone the cost of a back injury.