That's real close to what I'd be looking at.
I'll probably print the drafts at about 0.010" ( .24mm) and the final prints at about 0.006" (.16mm). Probably with a 0.4mm nozzle ( .015").
The example photos above were printed with 0.4mm nozzle and 0.2mm layer height.
I'd be happy with your level of detail. Smallest detail (real life size) I could capture would be around 1/10th inch vertically, and about 1/8" horizontally. So scale size of 0.010" and 0.0125"
I don't see the printing being as much problem as the CAD modeling work.
I've done some pretty detailed modeling .. like the Ruger below ... but in that case I had the item right in my hand to measure. Doing things like engine blocks, frames, bodies with their complex shapes and details will be a chore.
