Hey NetViper,
Saw your car (and 2 other NSX's) at Wildwings yesterday morning. Didn't see anyone hanging out by their cars, sometime around 10:30, so didn't get to talk to anyone. I called Acura of OP last week and got a price for changing out all the hoses (not just engine bay). Parts and labor came to $1286 compared to Science of Speed in Arizona who services the car I'm looking at, $794.50. They admit though that this is a discounted price offered because customer uses their facility. Don't know how difficult the job would be to do myself if I had access to a lift since I have never been underneath an NSX yet. The owner of the car has done all the required services to date and SoS was recommending replacing hoses simply due to age of car - 12 years old.