Shipping a bike from Europe will cost a **** ton of money. Back in 2007 I ordered a Grundig Beezz RCD 6800 DEC(Mp3 player boombox from Germany that takes usb and SD cards, which I am selling btw for those in North NJ) from Germany.
This is the cost:
Product Value 66,30 Euros
plus Shipping/Handling 52,94 Euros (The weight was 3.32 kg)
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Total Value 119,24 Euros
I also ordered alot of Greek books from Greece and shipping also almost doubles the price on books too. Alot of times my grandmother ships huge vats of Greek olive oil through some Greek shipping company in Pireaus, Athens and pick it up in New York City. I think that is much more affordable then using postal service, but I don't know the details about how to do that, or if it could be done without knowing people locally.
So a high end Dutch bike might cost so much with the shipping that would double or almost double the price that you could maybe even get a custom bike frame. There has to be something on the American market for bigger people. Or maybe you can just import the frame/fork from Europe.