Howdy Jim -
If RL system you have will fit a 4th gen Supra, you'd have much better luck selling it on:
http://www.supraforums.com/
(Though I would suspect you're probably familiar with that site). It's an excellent price for the product - I will say this though, the TC/AH system in the C5 (especially the V2.0 in later C5's) is significantly better than the TC (only) system that was in the MKIV Supra. I was actually on deck to get a RL solution before I sold my Supra (I had a '94 750HP, T04R single, highly modified from body to suspension).
Good luck and definitely post over there _ I think you price is still a bit better than the GP that I believe Dusty or was running.
Seeya -
