Use double transcripts with the college providing the accreditation. Each college teaches a course. Each college counts its own students. Develop common course numbers. This allows interaction but also provides autonomy.
Tribal colleges can specialize in their arts and cultural-specific needs.
Develop a talent bank for those who can do things well. Communicate at a distance. Get people together for 1 or 2-day intensive study programs. Alaska Natives need education at home provided by other Alaska Natives. Decide whether to become a tribal college under Federal law.