Expedition Portal Forums would be much better for this. I advise their storage solutions threads
agreed, i'll add my two cents.
I actually just came back to atlanta from north pole alaska 5 days ago.
Beautiful place. here are some interesting facts.
-summer around july/august forget what month, you get almost 24hrs of sunlight in fairbanks. its like 3 hours of constant dawn then sun for 21 hours.
-fairbanks is in the middle of the state.
- prudo bay is still another 500 miles north of fairbanks
- denali national park aka mt mckinley, tallest mountain in us is 125 south of fairbanks or 250 north of ankorage.
you might consider borrowing a RTT, buy one and then resell it after you done. You can do this too, from ohio drive to cascadia tents, or tepiu in oregon and buy one. install it then head up to alaska on the eastern coast.
Your back will thank you in a rtt. also, there is a cheap alternative. $900 for the smittybuilt RTT and $180 for the awning. all shipped via amazon prime!!! Im sure you can sell it for $500 and 100 when you are done with your trip. I cant stress the convenience of a RTT. setup is done in 10 minutes, tear down in 20. all this while taking your time. i have timed it, 7.5 minutes best opening, 14 closing!
buy a ground tent and it will eat up precious cargo space inside. tent, tarp, mats, cot etc. it turns into LOTS of stuff inside with a tent.
only 2 people and a dog? consider removing the second row seats for more space.
also consider a adjustable gate to keep the stuff in the rear from flying up at you and on top of the dog.
i'd get a front mount hitch so you can have flexability in carrying stuff.
alaska is beautiful place. there is tons of fishing charters that leave fron ankorage. i had the pleasure of being invited to a fish fry. friend caught a 325# halibut the week before. AMAZING, and he brought over some moose steaks too!!!