I can't explain how much I like this album lol potentially my favorite album of the year. Better grab one quick EG, they're about to sell out with the release. I finally snagged one last week.
www.ebay.com/usr/sleevie-wonder
specifically these
I haven't seen any that thick, but those are the ones I use and they're excellent quality.
edit: ah, turns out they do have them at 6mil here