Blooze,
I have done contract work in the past. Just let me know what you're looking for and I can try to replicate it. Of the group you see I can't take credit for the "Snake" Viper and the Landy Challenger (purchased both off the AH). Although the Landy Challenger wouldn't be that hard to do so I could whip one up for you if you need.
Swapping paint for a ride that handles sounds good to me. I've got my Camaro and Challenger outrunning most of the new metal in the game (not hard to do since they start off with good base handling and just need some tweaking) and the GTO is getting there but there just isn't enough time in the day to tune the crap out of all the muscle. Besides, I'm not that good at it. I'd love to put a tune on my ZR-1 if you have anything like that.
You could send me a car to paint with your tune on it. I'll save the tune, paint the car, and send it back to ya. Let me know.