Looks like my Dad is going to tag along, which I'm excited about. He's getting up there in age and won't be able to do the 'steep and deep' type hunting, but it will be a great experience having him along, especially since we live across the country from each other. He has gotten accustomed to taking a cow elk yearly off of his buddies ranch in another state in much comfort and without much effort, so it'll be fun to see how he does toughing it with me and without a tag.
I'm going to try the diesel-heater route for the tent. The only limiting factor for this will be battery usage. I appreciate all the advice and support I've gotten here. I might still reach out to a few of you via DMs for more pointers, what I've gotten so far has been super helpful.