2002 Jeep Grand Cherokee V8 4wd on 2040-cars

Time to sell my Grand Cherokee as I'm up to 5 cars for 2 people.

The vehicle is well equipped with 4.7L V8 engine, select-trac 4WD, anti-lock brakes, infinity stereo (cassette & CD), heated seats, power front seats (driver and passenger), A/C, power sunroof, towing package (class III), leather interior, remote keyless entry, factory alarm system, 60/40 split rear seat, auto dimming rear view mirror, heated side view mirrors, universal garage door opener, overhead console (compass/temp/trip computer), roof luggage rack, full size spare with alloy wheel, and rear window defroster and wiper. 

I'm the second owner of the car and bought it in late 2002 with 20Kish miles. I have had no major engine or transmission problems as the car has been well maintained over the years and runs great. I ran synthetic oil in the car until about 125K miles. Last tune was about 105,000 miles. I have replaced the crankshaft sensor, A/C evaporator, and most recently (this year) the front and rear back brakes (rotors,calipers, and pads).  Tires are near new maybe 8 to 10K miles on them. The interior is in great condition. dash and console are like new. The back seats have hardly been sat in. Driver seat has normal wear but doesn't look like 12 years old. Passenger seat is in real good shape. It is 2-3 years into a 72 month battery. I bought the car in Connecticut so it spend 3 years of winters there before coming back to Florida in 2005. Paint is in good condition but the car has a couple of dings here or there and some localized rust. Car runs good, AC works, and it's in overall good condition.

Now for the mechanical and cosmetic issues. I have changed the driver and passenger side window regulators a total of 5 times. As an Engineer I finally decided to repair the replacement part before reinstalling them since the failure was always the same. Both sides have been hanging in there ever since. However, the drivers side rear regulator just failed. I have a 2x4 back there holding up the window. Air bag light is on. I got a recall notice over a year ago on the air bag system and indicated the light would come on but they couldn't repair them until they got parts. I haven't heard anything more about it. So one or both of the airbags might not work, not sure. Check engine light is on. It never stays off more than a month or so. I have had the problem since after buying the car. Jeep dealer could never fix it. I found a vacuum leak not long ago and got it to go away for a month. But it's back. I don't bother checking the code anymore since it doesn't seem to effect anything. Overhead console stopped working. It was intermittent at first then it died. The 12V receptacles did the same thing. I suspect a bad ground but I haven't bothered with it since I really never used them. Wheels are showing some surface corrosion...maybe New England salt? There is rust on the hood in 4 or 5 plcs. It rusted from the inside out so it looks like poor prep on the original paint. Same rust problem on the top at the sunroof which needs repair soon. The sunroof leaked this year and I just put silicone caulk on it to stop it. I have never used the sunroof except opening it when I bought it. Hood air springs don't hold up the hood anymore (broomstick works nicely). Lift gate air springs hold but won't last much longer. These are the reasons the car is priced right to sell.

KBB book value for fair condition is about $3900 and the car is in better shape than fair condition and I'm asking for less.