1984 Jeep CJ7 - What it is worth?

Best bet is to research Ebay and Craigslist, see what they are selling for. NADA has it between $6-11k, depending on mileage, condition, etc. Look for rust, especially in body tub, fenderwells, etc. These were bad about rusting out. The under 12 k miles is amazing, but it is still a 28 year old truck. Rubber parts, like radiator hoses, grease seals, vacuum lines will be brittle and need replaced, and brake parts corrode from sitting, so wheel cylinders, master cylinders, and even the metal lines themselves, not to mention flex lines, will likely need replaced. Also, check for corrosion in the radiator, as sitting for years like that will etch water passages in cylinder heads, etc. Those had aluminum water pumps, which also will corrode from sitting... Good Luck!