@Marwin *******
First, Norways do not qualify for a visa on arrival, only visa exempt (see
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%20on%20Arrival/VOA.pdf). That's good because Visa on Arrivals are only 15 days, and you're getting 30.
For the visas, if you want to be here for 2 years or more, you'll need to figure out some type of long-term visa. Doing a tourist visa, even if it's multiple entry, will not be the way to do it.