Topgun, the vehicle issue is a big one for those of us who live nearly 1,500-2,000 miles away. What you can rent from the rental care agencies is just AWD, you can't take them off-road and can't put chains on them.
I'd love to see someone set up a 4WD rental business with older vehicles. Maybe there's not enough of us to make it worthwhile, especially since the young guys will tag-team shifts and drive it straight through. I did that too when I was 20-something. Doesn't work for us middle-age guys, though. Of course, we all have plenty of money and just use outfitters, right?