I know it was quite the resurrection of a thread, buuuuuut...I figured someone would read my first hand knowledge of the Alpina gauge and take it for what it's worth. A close friend has two of those things, and while it's pretty cool (especially how old it is), there are other options for a fraction of the costs. I have come close to buying two of them myself, but I bailed after weighing the costs of the item; its crazy to pay that much for a gauge, but that is my own opinion. I would much rather put that 750-850 euros toward an actual Alpina, which do pop up from time to time in Germany, France, Austria and Switzerland. The last one I watched sold for 5800 euro and it was in pretty fair shape. I also watched an E30 320is with 80k original km sell for 8,900 euro. I wanted to jump on that one.
Anyhow: Alpina digital gauge is expensive and rare.