Would love to see Scott Mann do and N&W S1a. I would definitely be in for one of these. Last steam locomotive built for an American RR. I'm sure there are a lot of guys who have A's, J's , K's and Y6's, but no S1 or S1a's. If you are a big N & W fan, this would be a must have. I have considered trying to kit bash one from and MTH or Lionel engine, but to make it accurate is a tall order. JG