I've been reading all the old 17" Steel wheel / winter tyre threads and thought I'd post an update:
After looking for weeks on ebay at poor photos and unmatched sets, I did some searching trying to find the bargain guy in Ashford Kent referred to in some of the threads. Several members had asked recently for his contact details but no answers were forthcoming.
I failed but managed to find someone down there doing the same thing and have just bought myself a set of 4 of these 'retro' 17" steels and goodyear cargo vector 2 215/60r17c 109/107t, all weather tyres, which will be my winter boots. Complete with the centre caps, they are £420 if you can collect from Canterbury, or £520 delivered by courier. They are straight off imported vans, delivery mileage. That's the same price (delivered) as buying just the tyres (at about £140 each plus fitting etc) from Tyreleader (who've been recommended here) to which you've got to add the wheels at £57 each.
The chap has a good reputation on the T4/5 forum, so I thought I'd plug him here:
http://www.vwt4forum.co.uk/showthread.php?t=138092 He says he has enough for everyone!
As per some of the debate here, they are not the 235/55 on my summer alloys, but perhaps a better (narrower) width for winter use, for my regular journeys across the Woodhead Pass.
He sends an invoice to your paypal account.