John,
The reason he asked about the car being in Portland, and mentions the fact that the engine looks dirty, is that the only '94 NSX right now on Ebay is in Portland, and the engine compartment is dirty.
I live in Nashville, so if anyone wants me to look at the car, perhaps John would bring it by my house and I could give you my opinion. I have a near perfect, 9.8 out of 10, never driven in the rain '91 with 22,000 miles I can compare it to.
Let me know.