Cheapest price I have found for the Hella 90mm low-beam unit is $45/unit. I found this
from an Ebay seller (ko4zb) when I saw one of his items on Ebay (a Hella off-road light) and made an inquiry to him about
the Hella 90mm unit.
He is offering several Hella products on Ebay now, although the Hella 90mm unit is not listed. He's an Ebay Power
Seller. Again his Ebay ID is ko4zb.
To contact this seller, go to: http://pages.ebay.com/search/items/search_seller.html
and search by "ko4zb" (his Ebay ID) in the seller. Go to one of his auctions, then you can contact him by email (you
have to be an Ebay user to contact him).
