With regards to the two seater VT-1 and VE-1 versions...
The shape of the VT-1 and VE-1 quite a task and a complete restyle and redesign of the chest, canopy & hinge, cockpit, chesplate, heatshield, backplate, backplate hinge door, back pack...this is only the beginning.
See what I mean.
Amongst all the aforementioned, let's not forget the the stuff that has already been listed above.
Whoever takes on this task, my hats of to you. Best of luck...this will be a great adventure to take on.
...Plus why not include a Misa in her uniform and Minmei in the red flight suit. Either of the two could be used in the backseat. It just depends on the what part of the movie you want your 1/48 to be in.