I agree with Mike and Mike. To have the correct paperwork showing exactly what needs to be in the car is huge. The force 4 lightbars are easy to find as is the syntor radio and the vascar. Be patient and start looking and don't buy the first correct one you find. Hold out for a mint nice one.
On Ebay I bought brand new (in the box) Force 4 clear domes for my Missouri car for 30.00 each which is better than half price of retail. The stuff you need should not be to hard to find.
I have a shotgun rack that if it is correct for the aero car, can be duplicated pretty easy also. I would not suggest buying one for 250.00 off of anyone. the are simple steel stock welded together with a butt plate and electric gun lock bolted to them. I will pull it out tomorrow and see what it fits.
Hector......did you ever yank out the rear seat so you could snap me some roll bar pictures???