I've talked with Telenor. Telenor cooperates with KPN, T-Mobile and Vodafone in the Netherlands. The only answer they could provide was "your current provider should know what possible packages you can have, the prices for data traffic etc". I don't believe ARP or LBO is an option in Norway.
Your best bet is probably prepaid coverage from NetCom. NetCom are advertising a lot at the moment stating that their 4G coverage is growing fast, thus it might be that where you're going are covered by the time you're there. On the website I linked to, there is a menu on the right hand side with the option "Chat og e-post". If you click this you can live chat with customer service to get more information (they won't have any trouble answering you in English).
I talked to the customer service, and according to them you can buy prepaid packages as long as you register with valid ID. This is an easy access solution as you can buy it at a lot of stores, for instance Narvesen (which you'll find very easily in any city in Norway). Their package with the most data is "Smart Kontant Pluss", which will give you 6GB data for NOK399 (for one month). You'll have to renew if you want to use it for a longer period.
Note that you cannot make international calls, only domestic, thus if you want to call to the Netherlands you'll need two phones, or switch sim-cards back and forth.
You can check out Telenor and Netcoms data coverage maps.
These operators use Telenor's network. You can check out their website and potentially contact customer service.
Hope this helped!
FTR: I'm not affiliated with Telenor or NetCom.