Hi Phillip, They are super models; personally I dont look too much at over polished/ glossed models; i prefer the real look in miniature ; I dont think a newly factory finished steam engine stated stayed that way for long in actual use… I think therefore the working model look is the most authentic!
Perhaps some of your engines set in a diorama would be a interesting diversion!
as regards Ic engines Bert White made a lovely blackburn single cylinder motorcycle engine and rex acme motorcycle, as did a few other makers and designs in The Model Engineer… feel free to message me, Ill try to help with info.
Keep the great work up, Phill, I am sure we all have dark days, but my models keep me going too
regards vic