And now on to some paint prep
In general, I plan on making some of the raised details (panels, ribs, etc.) using a thick (for the scale) layer of white paint. This way I can create the raised detail and a white highlight layer at the same time, eliminating the need for masking and painting on the highlights later on
Before the paint prep itself, I had to file the upper slot to shape and dry-fit the upper wing.

To make the front cowling, I glued a pair of hobby blades together using some styrene shims to give the correct spacing. I used this tool to scribe the panel line, then mask the front cowling. The panel was then painted white. I'll be repeating this trick to make some other panels around the airplane.

Before that, I wanted to get the worst part out of the way. This being the long, long process of masking and painting the wing ribs. The wing guide jigs I made came in very handy for this

After an hour and a half, the upper side of the port wing was finished. A little sanding is required to sharpen the edges.

One surface down, eleven to go.