I use a kitchen scale to weigh out the muscle meat, bones and organs.
I have no problems feeding my cats half canned (Instinct) and half raw. Puddles, Jasper and Sweet Pea are on that diet, Rose is pretty much 100% raw as she finds cat food pretty much
. I would not advise to feed any cat food that has rice or grains in it as it may slow down the digestive tract. Raw meat should go through your cat in 5-12 hours max. to minimize the chances of bacteria to multiply.
Feed only the raw yolk portion of the egg, the white portion should be partially cooked as there is something in it (can't remember exactly what it is)that doesn't agree with cats. The yolk is to provide the Vit B's for your cat, which BTW requires more Vit B than any other carnivore per body weight. Egg white does provide a low phosphorus form of protein, so if you cat does have kidney issues you should add this as a protein source.
I buy my meat from my local butcher whom I trust his hygiene and freshness, that is very important when feeding raw. It is much cheaper to make cat food than it is to buy it.
Good luck.
http://www.catinfo.org/makingcatfood...es_and_Sources
Oh the raw egg yolk should be minimum once per week, twice is better. I add 3-4 yolks to about 6 lbs of food.