where to buy a new coolant reservoir?

[Alfa168]

There is no source of finding a new coolant reservoir I am afraid in Taiwan.Does anybody know where We still can find a replacement?
I know the Alfa shop in Taiwan. They had replaced a reservoir from alfa romeo 166. It works quite well.But I stil want to find a 164-one.

[alfa east]

Alfissimo offers them:
https://alfissimo.com/cooling-system-co ... 4-all.html
I see some offers of an OEM brand on EBAY as well:
http://www.ebay.de/itm/VAICO-Ausgleichs ... SwmgJY5fhW