I've got a 95 Base 3000GT. 222HP DOHC V6, Auto tranny.
The only maintenance I've had to do was the 60K maintenance... I bought all the parts myself and had the dealer install them. $550 parts including shipping & $650 labor. $1200 is about what you can expect to pay for the 60K maint which includes plugs, plug wires, oil filter, fuel filter, timing belt, accessory belt, etc.
If the car has already had the 60K done then with 84K miles on it it should last you for a long time. I believe a couple people have over 250,000 miles on their Stealths. If the 60K was done then you probably won't have to do much more than oil and tranny fluid changes until 120K.
The AWD Stealth TTs/3000GT VR4s have their own set of problems... but there's no need to mention them since you're looking at a RT.
