1) stock bumpers front/rear. In particular, there's no way to carry a 35" spare. Figure at least $500 for a good rear bumper with tire carrier.
2) good clearance for 35s on the front. Rear looks stock, which isn't great for 35s. At a minimum, you'll want TJ rear flares to open up the rear wheel wells. Rear tube fenders would be better.
3) Tires/wheels are expensive, so you're good there, if the tires have a lot of life left. Otherwise, budget $1000 for new tires.
4) 3" body lift...yuck. This alone would make me wonder about the quality of the work that the PO did on the Jeep.
5) Not many miles - good. 6cyl - very good. AX15 manual trans - very good.
6) As stated above, Dana 35 + 35" tires = death. Count on an $1000 axle upgrade.
7) 1995 model - excellent, as it had lots of improvements. Better rust protection, external clutch slave, better brake booster and MC, larger Dana 30 u-joints.
8) What 4" lift did he install? Hopefully, not Rough Country or one of the less expensive ones.
It doesn't seem like a bad price. I'd just be worried about the quality of the work that was done. Reduce the body lift to 1", and hope that you still have enough clearance for 35s. If not, you'll have more work to do.