Hard to say. That car is considerably nicer than what I'm used to seeing. The mileage must be thoroughly documented to be of value. Odometer failure is a common thing on these cars. If you want top dollar, you'll need to have a listing with pictures of the interior, exterior, under the car, and the engine compartment. People will be paying a lot of attention to the underside for any sign of rust, and to the driver seat and pedals for signs of mileage. It's probably a good idea to get some pics on each set of wheels and tires to emphasize that it comes with two sets (some potential buyers just skim ads and/or aren't very good at reading comprehension). Also, fix the cruise control. A car where everything works is worth considerably more. Do all that and I wouldn't be surprised to see a five figure selling price.

Or you could just put it on CL and probably get much less.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.