I wouldn't pay over 3k unless the car was extremely nice. I haven't been following the price of them lately, but my last one I paid 2k for.
I sold my last MCSS for 2k in '03. It was an 88 with ~125k miles on it. With a stock 305 that was running pretty good.
I have owned 3 of them, my 1st one looked exactly like this next car except mine was blue:
This car belongs to a good friend of mine, he's signed up on here but doesn't post. He has had the car since H.S. (early 90's) I imagine some of you from Goose Creek have seen the car before as long as he's had it.