Thanks D. I was going to followup with some of detail upgrades. I picked up a junk Williams Masterpiece Dreyfuss (Smithsonian sister) and retrieved some detail parts from it. They went into the cab. Being brass I wanted to solder the brake stand to the floor so I extended the apron into the cab. This had to be able to be removed to work on the backhead. This is what I ended up with.
The cab floor had two screw holes in the center section for something (??) so I soldered two screws into the floor for use as studs. Being soldered in I didn't need the screwdriver holes so they were machined off.
Also the backhead is very nicely detailed, especially considering its a mid '90s engine. It got a paint job. Flickering LEDs were added for firebox glow and white LED added for cab light although I may go back to incandescent. I don't care for the light pattern.
Here is a shot of the cab now with curtains thanks to MTH. Window "glass" are plastic microscope cover slips. Figures are Bowser.
The engine now runs smooth and slowly. Smoke output matches MTH's. I hope to pull at least ten 18" heavyweights, preferably 12.
Now to get sound to the tender.
Pete