I hate to direct you there but the morgue has a lot of info on this. viperclub.org
Nice car you got there, post some pics. I am working on a 71 Challenger RT with a 440 4bbl and a 70 Challenger street car which is getting a 528 Indy heads hemi implant and complete suspension and brake upgrade and a 6 speed.
Seriously, a lot of people like the 99. I chose the 99 because it has all the interior updates of the new Vipers plus it has the forged pistons of the old Vipers. The only thing it doesn't have is the ABS. That was not important to me. Also, the 00 would be my last choice. No ABS no forged pistons. Some colors are only available on certain years.
So, what do you want? Color, ABS, forged pistons....?