Happy to report that the wheels I purchased have been delivered. It took two weeks rather than the 72 hours that the site said.
They are brilliant and I'm glad I got them from where I did because I saved almost £200. They look great and from what I can tell they are genuine Mak. ie all the right paper work is there and the quality looks fine.
I'm not fitting them for a couple of weeks, as I am having the Audi tow bar added as well. So I'll get them changed over at the same time.
Pics of the tow bar and wheels in a couple of weeks