I was thinking stripping it down to bed+head. I don't want to disturb factory preset. Am I wrong? I may need to drain oil though as it would be leaking when vertical?that is going to be interesting getting the lathe down there with that landing. I think I would take it apart as you are thinking so that you have a stripped lathe bed that you can lift vertical at the landing to get in the door. I was lucky my outside door to my basement shop was a straight run, so a flat bed wrecker was able to winch it down the stairs.
To me it is about what I can get in. Reading specs on both - weight look similar. Dimensions as well. It LOOKS like 1340 would be as "easy" to get in as 12x36As for which lathe to get, I have a 1236T and like it a lot. If I had extra money at the time, I would have gotten the 1340 for the extra capacity and the hardened gears, but for a hobby machine, the 12x36 size works fine.