My boat, an Etap 26 has mast tabernacle that also contains the mechanism for the retractable keel, and the mast sits on a pivot pin, so it can be easily dropped. I took it down by myself using a simple A frame made from two 8 foot long two by fours simply lashed at the bottom to the toerails. Then a guy to the bow, and the mainsheet with a sling over the spreaders did the lowering. My mainsheet is only four part and a little too short. I got small handheld worm gear puller to put it back up.
I'll note that my mast has a second hole in up much higher, and I realized once it was down that the hole was to to attach it to the tabernacle when in the down position.
Gary H. Lucas