Anything is possible with cubic dollars...
What you suggest though, it would be cheaper to find a later model car, buy it, then swap your entire guts over to the newer body.
In order to use your drivetrain, you would have to swap wiring harness and all. Even gauges, ECM, etc...
Still cheaper than modding a unibody car to look like another.
Would be nice though.
I have seen only one or two cars done like you propose, and they were sweet!
You definitely would have something you don't see at every show or on every corner!
I like the body style of the 94-98... As time goes on and styling progresses i think the 94-98 shines. Only way i would think of switching to the newer style is if it came with 4 cams and a blower.