I believe the Norwegian Navy still have problem with lack of funds and/or personnel to keep even their present fleet active. I’m not well enough informed to say which for sure. There is still a conscript system in use in Norway, but that doesn’t help for the Officer ranks and the skilled POs and WOs.
Bringing in civilian wouldn’t help much, if any who are “fighting fit” is willing to join. (As you probably know, being out of work is not as dramatic in Norway as in USA)
The Norwegian Coast Guard is partly manned by civilians and some of the vessels are even owned and managed by private companies: http://www.defenseindustrydaily.com/norways-new-opvs-flexibility-power-efficiency-opportunity-02437/
The Coast guard keep some officers onboard though.
NATO is not a piggy bank, where member nations put in money. (Even though Mr. Trump appears to think so) I believe the agreement is that all members shall spend 2% of their GDP on defence by 2024. Norway and most other NATO nations are heading towards that goal, by that time, with a few agreed exemptions. (Iceland hardly have any defence of their own)
I realize that the popular notion is that US taxpayers are carrying a too big burden, but that is the price you pay for being, and wanting to continue to be, the world’s hegemon. Dominance is nice, but it costs.
Whether it is worth the cost to build, operate and maintain huge fleet of Naval ships, aircrafts, standing Army and foreign bases, is obviously for the American people to decide, but you cannot have it both ways.