Sounds like a longer term good move Fi.
Could I reinforce the procedure I go through before viewing:-
Check the on-line MOT history.
Check the DVLA vehicle check to see when the latest V5 was issued. Can give you some idea of last change of owner.
Ask the seller to e-mail copy of the Audi on-line service history and/or any servicing receipts. If you have opposition in any respect - start twitching!
At the same time as requesting this off the seller, ask your local dealer if they would outline ( and ideally provide copy) the service record they have on the Audi system.
All this can be done from the comfort of your arm chair, and will form the backbone of sound research before you decide to view.
Good luck with your quest, and please let us know how you get on.
Kind regards,
Gareth.