Hi Exiles,
great site, and congrats on the sponsor! Interestingly we'll be doing a similar trip in reverse next year, albeit without the northwest passage so far more tame. Canada, Greenland, Iceland, Scotland etc.
We'll be on a 30 footer, although the custom bowsprit makes it bigger than you're 31 ;-)
I'm also very interested in information that is out there and people's experiences.
I can recommend the book by Willy Ker on Faroe, Iceland, Greenland (for planning, we'll see how good it is when we get there ;-) and the U.S. site has a huge amount of pilot charts and information for free download here:
Maritime Safety Information
Some say it has less accurate information that UK and Danish charts, but there is still a ton of information there.
Good luck!
p.s. for your insulation, make sure it is closed cell or you'll be unhappy!