This is a little off topic, but Paul, those are some beautiful photos of your layout!
Seeing the rolling stock and RS3s, I can see why you were interested in doing the San Joaquin Daylight. BTW I went ahead with Aristo heavyweights and USAT streamline cars for my San Joaquin Daylight. I haven't seen them together yet so have my fingers crossed on the color match....
I do think the code 250 really adds to the overall effect for standard gauge. I'm using code 215 Llagas Creek on my indoor 1:20.3 layout.
Best regards,
Alan