Caliper Boots source?

["Powell, David" <David_Powell@CBSI.com>]

I have an 89 100.
It has gerling brakes (of course).
One was a bit stuck when I replaced the pads.  (right rear)
The rubber boots that cover the caliper guide rails are warn out.
I went to the local Audi dealership for some.  They are apparently not
available in this country and would have to be ordered from Germany.
It doesn't sound right to me.  There have to be a lot of Audi's out there
with gerling brakes with warn out guide rail boots.

The part number is VW433-698-470  

four rubber pieces for two brakes.  $21.95 special order.

Anyone have an other source?

TIA,
DPowell