Others may have more detailed suggestions but I’ll share what I recall from when ours was removed for transport a couple of years ago.
Take lots of photos and make notes as well. It’ll help when you put things back together.
Remove sails. Label halyards and related lines, if necessary.
Remove boom. Secure all halyards and related lines to mast. We used vinyl tape, it was easy to remove a couple of days later.
Label then disconnect all wires that run up the mast. Ours were run from inside the head, thru the deck, and up the mast.
Our transport guy measured and noted each turnbuckle on all standing rigging, so they were tightened back to same spot where-stepping.
Once that was done he attached the lifting line from the crane at two points on the mast, took up the slack, loosen all the turnbuckles, took up some of that slack, the pulled all if the pins holding the rig in place. Lifted the mast and set it off to the side to secure for transport.

Hope that helps.