Steering wheel looks about in the same condition as mine - just get a new one, unless you want a non-standard finish. If you go to see it, make sure the driver's seat is in okay condition, they've conveniently composed the photo so that it doesn't show the bit that usually falls apart.
I note it also just says "service history" and not "full service history" so make sure you see the book! Like you I fully expect that it hasn't had the cambelt done. That isn't necessarily a bad thing - you can at least then ensure that it gets done by someone you trust. If you drive it make sure you go up and down through the box, especially checking the 5th to 4th change, looking for any clickiness indicative of impending synchro failure.
And yeah, it will have air conditioning, just not the nicer digital display and the auto wipers and auto lights (they're all part of the climate pack I think). Xenons is a big plus point.
I'd offer them £6,500 for it!