For those familiar with this type of vehicle what would be a fair price to pay for it from a private seller?

2003 Infiniti G35
PREMIUM PKG W/NAVI
MILES 7000

options: ABS, AM/FM Radio, Air Conditioning, Alarm, Alloy Wheels, Bucket Seating, CD Player, Cassette Radio, Cruise Control, Driver-Side Airbag, Leather Interior, Memory Seats, Passenger-Side Airbag, Power Lock, Power Seats, Power Steering, Power Windows, Rear Air Conditioning, Rear Window Defroster, Remote Alarm Control, Side-Impact Airbags, Sun Roof DVD Navigation, Wood Package, Xenon Lights, 17" Alloy Wheels, Auto-Dimming Mirror, Reclining Back Seats, 260 hp 3.5L V6.

I currently drive a '95 maxima with 190k miles and it may be time for a change.

I am interested in this car and they are asking $31,500 for it. I'm wondering if this is a fair price?

Thanks in advance.

Scrim