I have found someone with an air con unit to suit a bay window kombi. 
it mounts to the inside of the roof and has another piece going back towards the rear of the van, which has more vents in it. 
i will try to get some pics, if anyone is interested drop me a line and i will some more info, and price
OFFERS!!!
[ Edited on 18-1-2007 by vwrallycar ]
another pic
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)thanks for the correction. i had no idea how it fitted to a kombi, this is the 1st i have seen.
They seem to be a good unit. I would have fitted mine years ago except I already have a sunroof fitted... right where the aircon unit should go. 
u2u sent.
Cheers
Stephen
my offer is $50
owner wants $850 i was told today.
Thats only half of the unit. There should be a condensor rack with two fans on it as well. with out that all ya got is a big fan.
                                                                                                                       Rob...