Go to the Morris Thompson Cultural and Visitors Center, and ask someone there to give you a picture of what you'll encounter on the Dalton (Haul Road) Highway. They're pretty knowledgeable about the environment.
Or, ask a State Trooper for an opinion.
Or, watch this video....
https://www.youtube.com/watch?v=T3G25Zp4qbo
Mike. Comments are anecdotal or personal opinions, and worth what you paid for them.
2018 (2017 Sprinter Cab Chassis) Navion24V + 2016 Wrangler JKU (sold @ ????)
2016 Sunstar 26HE, V10, 3V, 6 Speed (sold @ 4600 miles)
2002 Roadtrek C190P (sold @ 315,000kms)