Pat, I have PS2 kits so I have the tach sensor mount and tapes. I could use the smoke unit though.
My plan to mount the Sunset shell on the MTH frame came to a dead end yesterday. One measurement I forgot to make is the smokebox diameter. The K5 is much larger than the USRA. I could machine out the MTH steam chest but would loose the flanges. I have a Williams masterpiece Hudson frame but that steam chest is also a different diameter. Driver spacing and size is the same though.
I think the only way I will be able to three rail the Sunset model is machine new driver tires as another forum member is doing now. In the meantime the K-5 still needs a lot of repair work as it was beat up when I got it. Only way I could afford one.
What are you going to use for a K5? I always thought a Blue Comet would be close.
Pete