Bill and I spent the summer in AK last year - workamping near Seward at Renfros Lakeside Retreat. We had a blast! Consider a stop there, if/when you go that way! Tell Gary Bill and Kelly sent you! He gives discounts to people who book Kenai Fjords tours through him!
I blogged about our trip - check it out, if you'd like: bkamericanodyssey.com
posts start early May and continue through October - there are 2 summary posts that give a lot of good tips.
Biggest tip I want to mention now - just go slow and drive for road conditions and you will be fine! Make sure to do all maintenance type things before heading up!
Have a great trip!