Shipping Something Heavy From The Us, Price? Taxes?

[Everythingape]

I've been looking around a little, trying to find a reasonable way to ship something fairly heavy from the US, and still save some money on buying it over there.

I can't really find a 'cheap' way, and some of the shipping methods will set me back around $200.

USPS Airmail Parcel Post $190..

The item is 55lb / 25kg, and in a cardboard box roughly 3' x 3' x 1' (1m x 1m x 30cm)

It's supposed to be sent from Maryland, USA to Bergen, Norway, area code 5000

Value of shipment is around $750

Of course, I'd like it tax free (25% in norway).

Is this feasible at all? Does anybody here have any experience with something like this?

Any help, calculations and such is appreciated.

-Tg-