Alex,
That orange-backed photo is the original Salzburg pump. The Stateside Tuning pump wasn't ready when I built my car, and while the Bug Pack one has been flawless the advantage of a stock sized pulley shouldn't be overlooked!
http://www.statesidetuning.co.uk/home.htm They are very good with email.
Since you're in Finland, you should also contact Juhani Jyränkö of
http://www.kuplapaja.com/. These guys build some incredible cars, and they've got plenty of dry sump experience. They may not be close, but share your flag
-Dave