This time, I decided to use my engine hoist/shop crane. An 8-1/2 ft length of 2-1/2 x 1-1/2 x .120 wall tube stuck into the end of the boom extension, pinned with the same pin holding the extension, gave me a working boom length of 11 ft. Since the load is beyond the fulcrum with the long boom, stability requires counter weighting, but I had a couple of 45 lb barbell plates laying around. While only one was actually required to safely handle the 90 lb mast (I weighed it) with roller furler and sail and all the normal rigging, I stuck them both in there to up the load capacity from 130% to 170% of 90 lb on tipping.
I lowered it from it's storage spot - hanging from the garage ceiling - onto a couple of movers dollies, rolled it out to the boat, hoisted it up and over the life line stantions, and lowered it onto the deck. The rest was pretty easy, as it's no different than normal mast handling when trailering.
I started thinking about ways to do this without killing myself after seeing what another member had done with a free-standing canopy parking spot, and a couple of block and fall systems to lift the mast off the boat. That wasn't a possibility, and a gantry would have been a pain to erect and store. But a shop crane folds up into a little package, and a boom extension is easy to make (drill a couple of 1/2" holes, plug it in), and the counterweight I had already. 11 gauge give better than 3:1 factor of safety on bending with a 90 lb load, though 14 gauge would also have worked, at about 8 lb lighter (down from about 26 lb) but with only around a 2:1 FoS on bending - a little light when inadvertently bouncing the load.
), and I needed to put the mast on in the driveway. Which leads to
carrier in cockpit
) just referred me back again, so maybe it's time to do something. 
