I hear you about NCL being slow with hotel information for land excursions. I have yet to go on that specific cruise/land tour, but I have gone on NCL cruises, and their excursions have always been top-notch.
Regarding hotels, it's always a good idea to contact NCL directly or do your research to see what's available. Remember that hotels near popular tourist destinations like Denali NP tend to book up fast, so it's best to plan.
And on a side note, have you considered searching and typing "the
ibis hotel near me"? I've stayed at one of their locations before, and it was great. Clean rooms, friendly staff, and amazing value for money. Good luck with your trip, and I hope you have a fantastic time in Alaska!