I had a Isuzu Amigo and found a split sunroof that I was able to shoehorn between the outer frame of the roof. It kept the integrity of the roof, but allowed me to have basically a glass top.-ie very little mods required.

As for the VX and a similiar project:
Anyone know of a company that makes very small (separate) sunroofs? ie. 12" x 12"? I'd like to put two in over each seat and have an instrument cluster running inbetween them.

-Doug