Sorry to be the one who says this but,
Its not worth that much. maybe, $3000 just because it needs a good amount of work. Ive found some that look about as good as shape as that with less work needed for about a grand cheaper. but that is here in NC. Just keep looking if he doesnt go down a good bit. The right one will come.
A good tip is find one that has been on for a long time, or sombody who is hurtin for money
Oh yeah, if it has carpet, BE SURE TO PICK IT UP AND LOOK UNDER!!! if there is carpet, there is likely small rust, vut that just means another thing to help negotiate on the price.
I have some questions:
What will its purpose be?
How mechanicly inclined are you?
and how much work are you willing to do?
But personally i would rather get a wrangler because:
Stronger fully boxed frames
91 and up had Fuel Injection (ALOT more power and better reliability)
Wider Leaf Springs (Better handling)
92 and up had family style roll bar
But dont get a wrangler with:
made before 1991
A cracked anything (frame, block, windsheild, ect.)
So i would look for a YJ
Hope this kinda helps.