Maybe the OP wants to get away from synthetic amino acids made from petrochemicals, or from stabilisers and other additives?
Zbraswell92, I too wouldn't use blood meal, as it's not very well tolerated by chickens. I seem to remember reading it isn't very palatable (tasty) either.
Finding a home protein source is a big issue for me too. Soy meal helps but you also need more methoinine so it's still crucial to find animal protein (milk if soured can be a good additive, but isn't great in huge quantities for layers, as it upsets shell production). I find it great for chicks though.
Seems to me the choices are meat meal, fish meal (a combination of the two is probably better), fresh mince, mealworms, worms, bug larvae etc. I feed a basis of sprouted grains with soy meal (currently non GMO in Australia, otherwise I wouldn't), peas, alfalfa and either meat or soured milk, depending on what I've got. Table scraps are great if not too high in salt but high in protein.
cheers, and good luck,