Thanks Dave. Yes the rust is part of the print, and it is the actual rust shape of the prototype. I took a side image of the locomotive and imported it into my model, then I traced the shape of the rust and used that shape to cut out the rust hole, then I added the repair plate they placed behind the rust hole. It was fortunate that the prototype added that repair plate, if not that top edge would have been very fragile.
that large piece of pipe (silver duct) on the left side running board is used to discharge the cinders from the smoke stack, which is a story in itself. The locomotive arrived with a straight stack, however to reduce fires they ordered a Radley Hunter design stack from Lima. In the process of ordering a couple numbers got switched around, and instead of a stack sized for a narrow gauge shay they got a stack for a large standard gauge shay, but they made it work out and the oversized balloon stack is a signature feature of this shay. Anyways, the Radley Hunter design uses vanes in the stack to throw cinders out of the smoke and they are collected in the outer part of the stack. To drain the cinders the crew place that large silver duct under one of the discharge ports (one on each side) and removes the cap. The duct directs the cinders out to the sides of the track.
