1 set of tyres £250 (blackcircles.com/branded)
N/S Front Door Regulator £100 (ebay/new)
Rear Washer Un-blocked £10 (any garage - or yourself)
N/S Wing Mirror is Loose £0 (not a big deal - ive been using it as is for a year with no hassles)
2 small buttons on dash missing £80 (unless your off-roading you will never need em and wont even notice they are missing)
N/S Front Bush top and bottom £150 (just an advisory but will need done at some point)
If I get 13.4k for the car I will do all the above.
Doesn't look bad in the photo's but I think he's being optimistic with the repair prices.. when the rear washer has stopped working it means a new rear wiper unit - it is very common problem, if it just needed a prod with a needle I presume he'd have done that.. Can't see what buttons are missing, but I do wonder why they're missing in the first place, or would it be a case of if the buttons aren't there whatever they operate can't be tested?..
Not wanting to put you off, but do tread carefully.
ps - on the photo of the passenger side does it look like the side running board is missing? or is it just me..