Thanks, everybody! This is a really fun build/conversion.
Just a tiny update: I closed the fuselage slowly in stages and did the same on the upper cockpit part. Done carefully, very little filling was needed. In fact, I only needed the fill the rear seam behind the coaming and just a few areas along the fuselage half seams. There were a couple of sink holes back near the rudder as well...
I then rescribed lines and added wood seams under the coaming based on the Datafile issue I have. It's all been primed and is now ready for some wood treatment!

I will say that when looking at the Datafile, the seams between plywood components are almost impossible to see...especially in 1/32n scale. I like the look of the "panel line" but it's probably more accurate to just cover them up with putty and just paint carefully with varying shades of wood and grain to denote panels. Maybe next time!
Anyway, I hope to get the wood applied over the weekend. Stay tuned...

Cheers to you all,
Dan