That seems a little high, but I don't know what Hawaii prices are compared to New England. The high end KBB around here would probably be around $6000 private sale in very good to excellent condition. I just picked up a clean 2001 SR5 with 175k and a good frame for $3500 which I plan to just flip for around $5000 to a guy I know who is looking for a 4Runner. If he doesn't buy it I'll detail it and fix a couple of minor items and put it on the side of the road for $6000 OBO. As far as the ball joints I am a believer in not changing parts that aren't bad, so if the boots are ripped or there is ANY play in them replace them with 555 brand ones (OEM) You can get them from Toyota, Napa's Altrom line or Low Range Off Road otherwise leave them alone. I fix cars for a living and have only seen one Taco separate a lower ball joint in the 23 years since the 96's came out. (the guy was actually on his way to his buddy's garage to do the ball joints and, yes, he did total the truck) I think if you could pick it up for $55-$6500 you'd be doing alright.