Dean's fabricator "invented" the GT hips. Most of those pieces (hips, rear bumper, and front bumper), were sold to Fiero Fiberglass by Dean, if I remember correctly. At least the hips and the rear.
Personally, I like the look of the base 88 notchie, compared to the Kermit pieces, but that's just me. Everyone has their own preference.
I have an 88 notchie, too, so I'm a bit "partial". It will be receiving a 3.4 DOHC, at some point. And very few body mods.
Don't let the Aerodynamic car get away. All I'm going to say about that one, just now.