BritVX,
Just saw an episode of "Pimp my Ride" where they took an older Blazer (early '90's) and re-did it. They added the best looking sunroof I've ever seen. It looked mike nearly the whole roof was glass, and the front approx 1/3 openned and slid back over the back part. It made for a lareger than average sunroof openning, and a VERY large glass top. Don't know what it cost, or who made it but it might be more doable alternative to bring in the great outdoors to your VX. Good luck, and keep us posted on your progress!
"If you're not living on the edge --- you're taking up too much space!!"