Here's what my grandfather always told me, " a car is only worth what someone is willing to pay for it". There might be people out there looking for just a truck. The 4th gen 4runners are increasing in value so you might be ok. Try selling it the way it is and you never know. If you want to maximize your money, give it a really good detail in and out. I would buff the headlights, get a set of used or A/M set of fog lamps because those are no good. A good maintenance history is a big plus if a potential buyer comes along. A new drivers seat cover can be bought on Ebay for about 100.00 and are simple to install.

To get an idea of pricing, go on car gurus and look for 06-09 4runners across the country. This might give you a better idea of what to ask.

Good luck.