I like your enthusiasm Bob. Honestly, though I was hoping for something more unique. Northern Pacific 4-8-4 would have been nice. Use the coal tender from the FEF. Put the s3 pilot on it and you are close to a class A4. Give it a grey boiler jacket... now your talking.
Also for the sake of discussion., I believe we are ready for a newly tooled scale steam locomotive. A class PRR I1 would be great !