Find an SC 5 spd doner car to get the trans and harness, shifter,brake/clutch pedals, Master cyl (Hyd clutch) and slave cyl hose, grab the ECU from it also. Need to mod the neutral start circuit (get a set of 'big sheets" wiring diagram avail from Helminc.com New console top.
If you want a 6 spd, you need an LS1 T56 from a 98-02 Camaro.
I am doing the T56 swap in my '93 SC (it was a 5 spd originally)
Check out my info over on SCCOA.COM T56 Install - Super Coupe Club of America Forums
There are part #s there also along with pics.
The swap is not for the timid.
Good luck should you accept this mission.