Monday addendum.
It's 11.29 p.m. and I just pulled the 567 gear front test off the machine and gave it a coat of primer to bring out the details. I'm quite pleased. I lost the starter lever almost immediately. Both it and the throttle links need to be beefed up. But the rest was terrific. Notice that the bolt holes in the output shaft actually formed as holes. And those things are tiny. By additional supports worked. The cranks on the throttles formed as I drew them. The water pumps and piping are terrific including their flanges and bolts. I'm confident that I can finish drawing all this stuff and it will print. To the right of the right water pump is the starter push buttons and they're visible too. I can crank up the resolution too, which will reduce those layer lines. But this picture is almost 4X its real size, and they're not that visible in normal size.