My experience
Hello,We were four, with a stepladder outside the boat (she was on the trailer).We had a Sirius 21, and beleive me that pretty different.You need something outside the boat to be able to put the base of the mast in the deckstep. The difficulty is to control the gavity center of the mast, because at the beginning, it is inverse to the exercice. We install a block and a pulley system between the forestay and the deck and we were 3 to lift the mast. Someone was secure it with the block at the front of the boat.Good luck