I have bought three Vipers from Mike at XVIPERS. (Looking at a Ford GT he has too...)I also have gotten three sets of wheels and tires, Eibach springs, Corsa exhaust, shifters etc. He had several of these items installed on my new cars before I picked them up. He seems to have access or can get just about anything for your Viper. Mike also has arranged to have several of my cars moved around the country to have work done on them. He recently took my 06 coupe to AP engineering in Detroit. Not only did he del. the car, he then took all the old body panels and sold them for me.
I have several friends here in St Louis that have bought "builders" from Mike and are very happy also. These guys will be driving Vipers this summer that probably wouldn't be. His inventory of used gen. 3 stuff is extensive. the gen 2 parts inventory is growing.
I have gotten new, used and borrowed parts from XVIPERS. I have also gotten new and used cars from Mike.
Be warned: Mike is very busy and is sometimes hard to get a hold of, BUT he will get back to you. His prices annd availability make it worthwhile.
IMHO