Sumpter 250's duff challenge

[Sumpter250]

I'm thinking there's little value in a 100X, maybe a microscope and some tiny robot fingers might be more in order. I envy anyone that can do this at any scale.

Your timing is excellent ! Now, I remember! I saw an add for packages of 100ea, "T" scale R2-D2's, and the price wasn't too out of line.
Yessss, tiny robot fingers, that's the trick !

I'm now at the point in construction where I have to disassemble both frames, and build the "articulation hinge". I did get the handrails on the boiler and found, and cured, one more of the binds in the main engine side rods. Also added gauge clusters to the backhead, so am very close to finally attaching the cab.
In this picture, a comparison: HO standard gauge 2-6-6-2, behind the HOn3 O/F, 2-6-6-2.
   

I will know that this project is coming close to being done when:
I no longer add another detail to the list, as I'm removing one that has just been installed.