You can get them at VW Emporium. I am just about to place an order for my van. The only part that you can't buy new is the fixed quarter light seal however Chris at Vw Emporium did say he had good quality used quarter light seals in stock.
Dave
'87 Syncro Hi-Top Leisure Drive
2.2 Audi Conversion
chris's are better quality if i recollect
i have good supple s/hand fixed 1/4 seals , but they cost me £20 each. so selling tham at cost plus post and a bag prob' £4 (the pair)
mm
For the top piece, as they can be used on either side, and the insides are usually in much better nick...swap them round I did this nearly 5 years ago, but looking at prices now I wish I had just bought new ones then
I replaced the window seals with one i got from a mk4 golf I got from the local scrapy. Do a search for (window seals) and I posted some photos some time ago. You need to do a bit of triming but they seem to work realy well on are van.