This is the progress of the modification work as of Sunday, December 14th, 2025.
If you look at the size of the Gaia Notes M-08 Quick Hard Spray (Long) that will appear after the extension, you can see that it's gotten quite large, giving it a final-boss feel. Maybe? Definitely?
It's about 2cm taller than the original Gundam Zagun. (I originally extended the stomach? spine? I mean, I extended that area by 4mm, but it didn't really change the appearance, so I extended it by 7mm. I'm now thinking that maybe 1cm would have been better. Next time I can buy it, I'll try extending it by 1cm.)
On Monday the 15th, I worked on the chest area and thickness.

HG 1/144 Gundam Zagan in construction Part 2 | 私生活が、極貧の翔姫's Gunpla works