Hi Dave,
I was going to take the end of PRR route and model the Rampant Stallion as well as the PRR but decided I had been down that road before and as there is enough of of the PRR still to model that has not even been touched. I just picked up a Mainline Modeler and there is and article in it about detailing a K4. That will help bring my Minitrix K4s to life as well as re-powering. Keep up that great work it is an inspiration to a lot of modellers.
Regards