Tim,
The washer, dryer, and stationary tub are right beyond the window, and that is all the wider the room is. Yes, I could go out about a foot and a half at the most, as I already have a shelf there where I mounted the convection heater for my daughter when she used the room for an art studio.
Point to point third line? I have thought a third line may be something at a low level where kids could run less expensive trains. I have also thought of getting a Shay or Heisler someday to go into the mountains for logging. Point to point could work for that. Good point to bring up!! Thank you!