It seems like a decent price according to the ad. What would be a dealbreaker is rust. Some surface rust on the tub or frame is no big deal, but any flaking rust is a concern. Rot holes are a dealbreaker at that price. Lift the carpets and check the passenger and drivers floorboards. While the carpets are pulled back, look at the inside bottom of the hinge pillar. Look at the rear of the frame on each side where the rear spring shackled are attached. Look in the middle of the frame where the skid plate is mounted. Look on the drivers side frame where the steering box mounts.
I agree with
@The Good Twin that the Jeep needs different gears. Rather than spending all the dough to regear, you can spend less money and buy 31" tires. Sell the 33s to someone with deeper gears. Then replace the 2" body lift with a 1"- 1½" body lift. Try to back the Jeep up with your hand off the shifter. Due to the angle of the shifter, when a tub is lifted, the shifter can hit the rear edge of the shifter opening and pop out of gear. The gears affected are second, fourth and reverse. Mostly reverse.
Ask the seller if it's OK to take the Jeep to your mechanic to have him look it over. The sellers reaction will be a tell. If you're unsure about what to look for, you can hire an inspection service to inspect the vehicle. Cost won't be less than $100.00 and could hit $300.00. If it saves you from buying a money pit, it's good insurance.
I'd be inclined to take a good look at the '94 and see what kind of a price you can negotiate. That might be a better deal. The hard top is worth a quick grand. If the '94 doesn't have a hard top with full doors, $10K is a lot to ask.
Let us know how it goes.
Good Luck, L.M.