"Well, if you think the Porsche is kinda snazzy, I've always thought the same of old Jags. How 'bout you drive this and if you like it, we'll trade?"
Man, you can always find another 911. So, if the '73 911 S sold for 150K last year in totally original and non running with 7xx miles on it, you think an XKE is not a very valuable car? Now, it's been awhile, so I don't remember my models like I used to. But, is this a Series I. Roadster or coupe? I think they even had the 2+2 out by then, so models vary in price. I think this one has the bigger motor and the synchromesh trans.