build a gmaxx and i need help

[Maxxrickard]

thanks Mike and RcMonster.
i am a happy owner to a CD mount


i have a few problems and need some smart help.
i must dremel in the chassi and a wounder if a should build up the chassi around me worked area.

diff:


chassi:


is it more space in a G4 chassi?
if anybody have a G4 chassi and would like to sell it or trade it to a FLM chassi let me know.

i need new center driveshafts. will any fit or how do i do?

it beautiful.