Awww....I know you are dying!! I have a 3 month old..he rarely barks unless hes really playing hard, and even then, its such a tiny yap. I do agree this breeder doesnt sound like the greatest...especially the choice of food! If it were me, Id go rescue my baby....
As far as health concerns, I agree witht he others...be prepared! Hopefully he will be happy, healthy and live a long wonderful life! You just never know with these little ones...mine are all covered by PetPlan just to be safe...you might check into that!!!
Good Luck!!!