Yes, I can do almond yogurt too. Guess I skimmed over the almond part in your post.
Gluten free, that's rough! It does limit options. I know there are many brands of gluten free cereals available now. Maybe just get a couple you like to replace the wheat based ones. Then just follow with the rest of the ingredients.
As far as vegan, my daughter and I had been vegetarians for many years. Watched the movie and then bought the book, "Forks Over Knives" and became vegan that day. Never looked back and honestly I don't miss the dairy at all. Thought I would because I love cheese. We are about 7 months or so into the vegan eating. Vegan isn't a choice for everyone. Had a friend who tried, like you and became deathly ill. Went back to eating meat. It does take some work I will admit.
I do hope someday the cereal Gods bestow some gluten free version of shredded wheat. lol....shredded amaranth? rice? quinoa? Who knows!