Bill, I'm not sure what you mean by renting a lift. If it means something like a cherry picker, it may not work for your needs since if your wiring is original, the electrical connector is inside the mast down near the base. There is no way to access it without stepping the mast. I had my mast taken down by the yard when I rebuilt the mast step and I don't recommend trying to do it yourself. That mast is heavy, it took three of us to move it once it was horizontal. If there was a way to safely do it yourself, it would probably cost as much as paying the yard. You may find a place that has a mast crane that you can use but you want someone with experience operating it.
Manny