I find this sort of question rather difficult.
It depends on where you are (seller and buyer), the condition of the equipment, and also on what it is worth to you.

But i'd say it's about $ 800 too expensive.

Is it priced in US $, and if so, are you consider buying it from teh U.S.?
Then figure in the duties + VAT you will have to pay to get it to Denmark. That may add about 25 % to the price.