I found a nice 87 GN for sale locally. It is a hardtop car with no modifications except an air filter. Car is in excellent condition with 38k original miles. Let me know how much you think the car is worth?
The owner is supposed to give me a call after he speaks with his wife about the price. If I pass on it, I will definately fill you in with all the information. My friend knows the owners and said they were looking to get somewhere around 10k, maybe I can offer them 8-9k and see if they bite?
From the description, the car sounds like a good one. You might want to start at $8K, and let the negotiations begin from there. It sounds like a good deal. Best of luck!