Tox,
Looks great! What are those parts in the upper mandible, far left? They are located below the F1 engine and to the left of the POW part? Also, that grey hook part that is near these parts.
Just thinking that there's a part missing on your set up of the port mandible,..you probably know what the real part is, but I think it looks close to part A3 of the Leichter 222...some sort of hatch/ peephole thing... It's the part marked with the red arrow..
BTW, do you know the green arrow part..?