Unless you plan to put it back complete the way it was from the factory then I would make it your own. Any deviation at all (even as much as a stereo or engine block) will not bring the big bucks. People that pay the big money for all orginal want that....all original.
I say make it your own.....which is what I did to mine.
2SS | M6 | VR w/White Stripes | 1 3/4" KOOKS - 3" Magnaflow | LPE 3.91 gears | ADM tuned | Halltech w/ADM Scoop | Spohn/BMR Trailing Arm/Toe Rod | BC Coilovers| Pedders FE4 ZL1 swaybars | Cradle/Diff/Radius Rod bushings | VMax TB | Morimoto Projectors | MGW shifter | Red Calipers