6000 EUR is a bit low for a modern design F16. The large increase in production of these happened early 2005 and later. This series is still in the range of 7000-10000 Euro, because they are not old enough to be much cheaper.
However take a look here :
http://www.catamaranparts.nl/boatmarket%20f16.htmThe Older F16 boats have pretty much been sold in 2006 and 2007 to places like Sweden (were one is on offer now) when they were replaced by newer F16's to which the owners are still holding on. I imagine that Sweden is too far for you, especially since the addition costs will also allow you to buy a more expensive F16 in the Netherlands,
Wouter