It's been many months since you posted your request, but we do have a kneadable, yeast, gf-bread that my kids help me with. I can't remember the name of the cookbook that I got it out of from the library.
GF buckwheat bread
Mix 2 1/4 tsp of yeast (I always use less) with 2tsp sugar and 1 1/4 c. warm water and let sit in warm place for 15 minutes.
Meanwhile, mix 1tsp salt (the recipe had no salt), 1 2/3 c buckwheat flour, 1 1/4 c brown rice flour,...