Thanks for the Borbet recommendation and the supplier links. I am awaiting the outcome of what effectively is a warranty claim against the supplying dealer for my front 2 Parker alloys. It was a used car, not new but only 6 months old and it now seems both front wheels have had a rather inferior refurbishment. From advice I have received elsewhere on the forum I am unlikely to get new replacements and if anything will be offered another refurb which would probably last until the warranty runs out.
So, I am thinking I might have to get a set of decent wheels, store the Parkers until such time I sell it.
Of course, if Borbet is German (or non U.K.) could there be delivery issues depending on the conclusion of EU trade talks? So many permutations!