Me personally, was in the same baot as you a month ago, go for the U.K spec, i would thats what i decided in the end, and only thing i can think of majorly annoying, is the rear axle clicking, check that, and make sure when you drive it, you run up and down the gears both slowly and a bit fast, but dont piece the guy off, lol.
All depends how fussy you are with cars, but defo dont rush into things, i didnt, and i got a mint one, loving every second of it ?