Those models span over a period of 7 or 8 years. 3 - 7k?
VS Calais's can reach up to the 6-7 mark but you can find them for less pretty easily, so you looking at around that cost for 5 litre with all the bells and whistles. For an SS of that model range they are still pretty expensive with some reaching the 10 grand mark which is flat out stupid.
You can pick up a poverty pack VS Exec for like 3-4 grand pretty dam easily.
Will say this...
They are worth as much as you are willing to pay. Might sound stupid, but really thats all it depends on...
"Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind."
- Theodor Seuss Geisel
check the car sites, eg car sales trading post etc... then you will get a rough price.
dont worry, il start a ride thread soon.