Euroboy

I'm flying from NRT->CPH on SK984 this Friday in C-class. A few questions for all of you SK experts:

1. Which terminal does SAS fly from in NRT - and is there a lounge?
2. Will I be able to get into the SAS lounges in CPH upon arrival to check mail? I'm UA *G
3. Also - any seat recommendations for this flight?

Thanks!