Pat,
Progress looks great! I'll second John's input that more velocity out of the dynamo steam would be great. Once the smoke effects are ironed out; I'm looking forward to what you can do with the smoke lifters.
Lots of discussion on marker and class lights in the earlier posts. Sounds like it's all sorted out. Included below are some pictures I took at the RR Museum of PA for more clarity on PRR practice as described in the PDF file Bob provided:
PRR G5 in the 1922 to 1940 configuration for passenger steam with class lights on the smokebox and markers on the pilot beam:
PRR H6 in the 1929 - 1942/6 freight configuration with markers on the pilot beam, no class lights:
PRR E6 in the post 1946 configuration with "bulls eye" markers on the smokebox, no class lights:
