Ah thanks for the fast reply!
The kit was indeed supplied with 0.56uF cap's but I have only received 7 of them instead of 8.
I triple checked all bag's, even the post envelop but the missing cap was nowhere to be found.
Now im not really fuzzed about it, since i know how easy it is to forget a component (specially when one is tired).
My local electronics vendor for example never managed to get my shopping list right the 1st time, so I always have to check my list before leaving the shop ^^ (can't really blame him since I know how stressfull his job is).
Anyway the real question is now, will the Wima MKS2 capacitor be a suitable replacement? They seem too small to me for placement in an LC output filter (high current demand).