I just got rid of an old Chickering upright piano this morning. I got to tell you, that boilers got nothing on this beast
Sierra's suggestion is the way to go! I went to a tool rental place in town to see what they had for dollys or hand trucks and ended up hiring 3 guys from the place to move it. Best $90 (I actually paid $120 with a tip) I ever spent. ($30 an hour per guy) They had a really wide heavy duty hand truck with big air tires on it they used after it was out the door and on the front lawn. They also did an upright freezer while they were here which is like a feather after that piano. Stuck them both into a 20yrd roll off I had in the drive.
When I had a new steam boiler installed down in the basement the plumber called a guy with a backhoe and he lifted it with a chain and lowered into the cellar via hatchway.