You are now modeling closer to my time period IHC also made a 4-4-0 using the same boiler as the 2-6-0. I have one, it ran well, but the flanges were too deep for code 70. So, I have the mechanism from an old MDC 2-6-0, and I am going to mount the IHC boiler over the MDC chasis. It looks like it will make a very nice fit.