Goldmund Turntable with T3 arm--what is it worth?

I am considering purchasing a Goldmund turntable(Studio?) with a T3 arm, PL-6 Servo, and a Benz Micro MC-3 cartridge that needs to be re-tipped. I have not looked at this yet but plan to next week. I woud be buying from the original owner who tells me that it is excellent cosmettically but has not been used in 10 years. What is a fair price? Also, what are the things to look for and posible problem areas? I read that the T3 arm can have issues.

Any advice is appreciated.

Thanks,

Mike