If you want designer feed, well it will be pricey for sure. On the subject of the fishy smell. It comes from the animal protein added which in your mix comes from fish and crabs. I know that you are trying to get the HEALTHIEST feed possible. Sometimes what may seem like a great formula may indeed be NOT SO GREAT. Do some research on fish and mercury content. I know that pregnant women should avoid eating too much tuna. I am not saying that your feed has mercury, but fish seem to have some. I do eat fish, from oceans and fresh water lakes. I can not possibly become pregnant. The fish smell reminds me of a story told to me by some elders. In Eastern Europe on collective farms, they used to raise chickens. The eggs and chicken meat did have a strong fish odor. They were fed whatever the government provided these collective farms. All the fish scraps available were ground up and mixed with whatever grains they could come up with. Very few people liked eating the poultry and eggs. When there was nothing else available,,,,, well they ate that regardless.
I feel very comfortable feeding my chickens feed from the feed store. It is up to every individual to make their own choices.
WISHING YOU BEST.