Bob's Red mill sells gluten free instant oatmeal:

http://www.bobsredmill.com/gluten-free-quick-cooking-oats.html

I find it in the stores here but I live in the communist republic of California. I also found this at amazon:

http://www.amazon.com/Glutenfreedas-Instant-Oatmeal-Variety-6-Count/dp/B002AUF0Q2

Now that you have a source for powdered Almond milk there are plenty of hot cocoa powder recipes that would only require substituting powdered almond milk for the powdered milk:

http://www.foodnetwork.com/recipes/alton-brown/hot-cocoa-recipe.html