I used the following thread to make m purchase....
http://www.nsxprime.com/wiki/Pricing
I paid more for what I thought was a super clean car, with all history dating back to the day it was purchased, and I even called previous owners and asked them about the car.
I found that since they had no vested interest in the sale they gave an honest opinion. I found a cheaper one on cars.com but decdied to not do it because the previous owner didnt do the timing belt. IMO if he didnt do something as obvious and important as a timing belt the other maint. was probably not taken care of either.
Also, dont feel like you are being a pest, ask for everything prior to making your purchase. They want to sell it to you more than you want to buy it.. trust me. Be persistant and investigate every little thing until you feel you made the best decision you could.
That will MINIMIZE your out of pocket repairs, but not eliminate them. As I found out some parts on a 13 year old car are going to fail no matter how well the car was taken care of. I just got the car and replaced the Clutch master and slave cylinder at a total cost of 660 bucks. And that was with a super clean car. Imagine what is lurking with a car with substandard history!!!!!
Jman