I think it's Jp magazine that thinks the '96 & '99 are the best bets in XJs. I bought mine two months ago on eBay (only because it was just 1 1/2 hrs. away & I could check it out beforehand). It's spent its entire 8 years here in Maine & the only rust on it was several screws on the sill covers (which I finally managed to remove & replace w/the help of this forum) because it was meticulously washed all winter to remove road salt. So good maintenance can go a long way toward counteracting the Rust Belt.
I'd offer $3500. Depending on what the service records show you has been replaced (the 90,000 mi. scheduled maintenance is a biggie & if it wasn't done you'll spend some money pretty quickly), I believe you should be able to buy an SE from a private party for $4000 or less--at least in Maine where prices tend to be a bit below the national average. Pardon me if I'm telling you what you already know, but check all the web price guides, esp. NADA, & average them out. You can also check eBay auctions, both current & completed, for average real-world selling prices; though--with some crazy exceptions--they tend to be lower due to the risks involved & often travel expenses to pick the cars up.
Mine is the Classic pkg. bought w/just over 90,000 miles, 4 dr/4WD/tilt/AC/roof rack/sunroof/cruise/rear def & washer/new Kenwood 10 CD audio/new (5K mi) Michelin XCT/APT 30X9.5 tires/new battery/good heavy-duty tray-type winter floor mats incl. cargo deck.
And it's immaculate: not one tiny ding or scratch inside or out, owner's manual like new in its orig. case, paint looks brand new, trim/gaskets/bumpers like new, not a spot/stain/tear on seats or headliner, the summer floor mats (& carpet under them) are pristine, the spare has never been used, everything works down to the cigar lighter, it never towed anything & mileage was largely hwy since it was a wife's commuting car. It has all the same features as yours except ABS (which is just fine w/me; I'm too old to learn a new braking system).
I paid $4500, the asking price. I might have bought it for $4000 but I thought the seller deserved it for the good care he'd given it, not to mention over $600 in new tires. Most belts & seals had been replaced in the last year, AC serviced/recharged last summer. In spite of this I had to do a tuneup, new plugs/wires/cap/roter/air filter/tranny fluid flushed, and a new cat/02 sensor/muffler for $353 (cat broke the 3rd day after I bought it); which means I put another almost $700 into it almost immediately (incl.a Mako console-mounted dbl.cupholder I love. Bought that on eBay too).
So you can see how important the maintenance records/receipts can be in determining what your true cost is--or is going to be very shortly.
It's still one heck of a car for $5200. I've put about 2000 miles on it & I'm crazy about it. Good luck.
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