So I've ended up buying the set of black leather sport seats that have been doing the rounds from another A2OC member...
The ones that the passenger seat has rips in... except that'll be the drivers seat so I need to sort it before I can use them.
They came as a set with a bench rear seat. Not great as I've got individual rear seats.... but I think that I might be able to fit them.
As the leather on both the base and the back of the seat is in such a poor state and they're not heated, I might look at replacing the covers with new heated versions from Audi... we'll see how much they are!
Looking at the photos from the 'Guide rear seats' on here (great post by the way!), the outer front mounting brackets look to be in the same position as does the location for the support bar and the upper fixing points for the back to clip into. It's only the inner end location holes in the floor that are in a different position.
See the photos below:
I'm looking for photos with the carpets removed so that I can see the elongated holes clearly. If it's possible to cut the extra holes in the floor and use them, I'll fit them and put up pics.
MG