Mast Stand
I made mine from a 2 X 4 that sets in the recess where the drain is in front of the transom. Cut the length to support the mast so that it just clears the hatch. I ususally put something in the gap to pad the hatch. On the top end of the 2 X 4, screw or nail a 2 X 2 on each edge of the 2 X 4 so that it forms a fork for the mast to rest in. If you want to make it look nicer, use a jig saw to cut them in a curved shape as you desire. Once the mast is resting on your new stand, lash the mast to the rear cleats to keep it from moving sideways.