Good luck selling it, I had a hard enough time.
Literally last week I've just helped a mate buy a late 90's XKR, pick it up and hear the supercharger whine. It's addictive but also in the great words of admiral Ackbar, it's a trap.
DO NOT buy a jaguar unless you've had a chance to view the underside of it on ramps. The number of late 90s jags that we were looking at that were totally rotten underneath, while looking stunning on the outside was shocking. View anything 10 years old or above as suspect, the paintwork is typical british (read: rover aka shocking) crap. Most of the XKRs we were looking at wouldnt make it through their next MOT.
Oh yeah, look forwards to having fun with the wiringwater ingress, crap quality and wear and tear all take a toll. Search hard and far for a good one, if you get a bad one it's a money pit.