You can definitely buy vegan "milk" or white chocolate. I didn't really like the white chocolate when I had it, but I think that was more because I'm picky than because it was bad. Apparently most people who have it love it.
Ahh that's awesome! That fabric wouldn't have been my choice, but now that I see it in the finished product I love it! I can't believe that was your first hoody, it turned out looking really well done.