They are all genuine Audi, with genuine Audi centre caps. There is only really one slight mark on one of them and that shows up on wheel number 4 (see below).
They are 8Jx18, 5x112 with an ET of 45
Wheel 1:





Wheel 2:



Wheel 3:


Wheel 4:




As for the damage on number 4 I reckon someone a bit handy with a touch up stick in the appropriate colour could do a nice little tidy up job there.
Tyres are Continental Sport Contact 2 235/40/18 95Y all round and as you can see from the pics they're not new, but all are above the marker, some more so than others.
Crunch point is I really dont know what they are worth? On VAG parts (I presume a lot cheaper than Audi themselves) they are £261 each inc cap and vat, but excluding tyres, so £1k new in effect.
Obviously not after anything like that cost, have seen them on Audi site going for lots of money as apperently they are quite rare to come up for sale(???), but (this may be a ridiculous price, I dont know, feel free to tell me and i'll adjust it) offers on £700 invited, but in the end i'll sell on to the highest offer really, if that ends up being £500, £400 or whatever then so be it as that must be the market value I suppose! So dont be shy make an offer if your after a set, you never know!
I'm based in Epsom in Surrey, collection preferred, just makes life easier!