I can't tell you for sure with the cornish game hen amount, because I can't find them for cheaper than $8 a piece and therefore have never fed them, but someone else will probably know if that sounds about right.
what I have found makes this a lot easier is to go out, buy a LOT of meat, and bag up meals for about 3 or 4 weeks that are balanced and correct. then I just thaw one at a time, and that's the cat's food. this might make it easier for other people in your family too if you explain it to them.. mark the baggies for the week and day that they're for, and tell them it's all measured and balanced and to only feed them whats in the bag marked for that day that you thawed. then if the cats are hungry, they'll know to just give them the other half or a little piece of the stuff in the baggie, and not resort to dry food or whatever meats are around when you're not there to supervise. the diet isn't overly hard to do, but when you first start it is a bit confusing, and having someone else feeding things here and there I can only think would make me feel more overwhelmed. I usually leave a few chicken hearts thawed if I have them too, because they're like a perfect treat size and cats seem to react like they are QUITE delicious, and high in taurine to boot!
a lot of people don't feed a massive variety... I only do chicken hearts, chicken, beef, beef kidney, quail, and veal liver (because it's the only, young, organic liver I can find.) which isn't any more variety than you're doing.. every now and then cat gets a treat of an interesting meat I find somewhere if I do, but I don't feel like *I* eat much more variety than that. we don't have a deep freeze so I only get meats that are commercially available, and we're in the city, so seeing something like moose or venison here is much rarer than where I'm from.
I also think that chicken wings are too big for my cats, though a lot of people don't and have great success with lots of chicken bones. but I decided they are just outside my comfort zone, and stick to smaller bones for my own piece of mind. I would recommend getting the quail that you found, the quail makes me feel 100% better about bones every time I see them... they're so teensy, and the bones break so easily.
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