This past weekend I tired to get a lot done. Which for me meant I didn't get much sleep. I rose early and stayed up late, and consequently I put the update for this thread in another thread. I deleted most of the post, but couldn't delete it all. My apologies for drawing you into an old thread, if you looked.
This is my current status:
At this point, I've chipped the paint, and added the engine and cowling.

For those of you that noticed, I narrowed the white circle around the fuselage Hinomarus.
All of the markings on the plane so far are painted....for better or worse.

How many of you have seen the gun camera footage from the Great Marianas Turkey shoot? One thing that struck me was how orange the Hinomarus showed on the gun camera footage. It may have been from several different factors having nothing to do with true color, but since I was painting them on, I took liberties and added a lot of orange to my red paint. My apologies to Tamiya.
Before weathering the underside, I had to take account of several factors. One was the tailwheel. It's so small that I can't see it being used on anything but prepared surfaces. Also, this plane most likely served from long standing airbases like Clark Field in the Philippines, or bases on the Japanese mainland.

So, I restricted my weathering to exhaust smudges, gun smoke smudges, and oil from the engine, control surfaces, and landing gear.
Thank you for looking,
Gary