I was able to buy the HGAW Gundam DX during its re-release, so I did a test assembly of a Real Bakuou Gundam.

The God Gundam is quite chubby, so it looks like the DX's abdomen and sides should be extended.

Also, the neck is short, so it might be a good idea to insert a spacer to prevent it from sinking too much.

I haven't attached the V2's wings yet, and I haven't thought about the bird legs either, but I was just happy to have all three—V2, God Gundam, and DX—in my possession, so I jumped ahead a bit. I'll take my time with it.

[Preliminary Assembly] Real Bakuou Gundam | 邑楽(おうら)'s Gunpla works