Looks great David, especially the pipe flanges. So much better looking than commercial fittings.
Regarding paint, it sure would be nice to see a stuart engine not painted fire engine red or John Deere green.
Blue with orange highlights looks great, so does maroon or burgundy on these engines.
I did see some USA made stuarts with pale green and pale yellow or white trim, they looked very smart.
Up to you of course. Great job so far.
JD