Aren't you supposed to pay the import fees at the first point of entry in the EU? Once it is within EU, you can move it around freely as you wish.
That is at least my understanding from a previous job where we used to carry expensive things around with us across the globe.
There are no import fees for computers, just the VAT.
Anyway, it was also my understanding that I would need to declare the goods at the point of entry but my tax adviser talked to the customs and they told him I should declare it with
Swedish customs as my company is registered in Sweden and will reclaim the Swedish VAT. Probably there is some cooperation between Sweden and Denmark since CPH serves the metropolitan area of Copenhagen and Malmö?
I know there are some quite funny agreements on taxes and social security here as well... I will talk to the Danish customs on my outbound flight to get their input and hope the customs officers are not totally clueless - which I think they will be