I have it figured out pretty well. The key is securing the shop crane outside at the top of the steps. I have an old roofing hook that I’m going to stick on the garage side door so it pulls linearly on the wall up to the the crane. I’ll use block & tackle as the line securing the crane. I’ll have to move the crane 3 times for each boiler, but it’s not a big job to move. I’m just glad I have the equipment to move the boilers and set the new one.