Introducing RAW chicken wings

What size are your dogs? If they are small, then just offer the wings about three times a week - make sure you skip that meal as the wings do have calories. If you have medium to large dogs and aren't looking to feed raw per se, look for knuckle bones and marrow bones of beef, bison, elk, etc. These bones aren't edible, just gnaw-able, and the cleaning action is almost as good - your dogs can have them every day once they are used to them. Medium sized dogs can have raw beef ribs, too - these are very inexpensive if you buy the packs at Walmart or Costco. Mine will work on these for an hour or more and they are wonderful for teeth cleaning. Tiny dogs can have beef ribs, too. If you don't mind replacing a meal, pork neck bones are cheap this time of year and are more effective for teeth cleaning on a larger dog than a tiny wing. Always introduce anything new gradually!

Size would help huh . . . Gracie is about 45 lbs, and Winston is about 55 lbs. Winston has had both beef ribs and knuckles before with no problem. Gracie though has not . . .

 Another issue I'm concerned about is keeping them separate. Gracie will have to eat in her crate I think . . . . but thats fine, isnt it?

 Yes.  There's no magic to it, really - you just work out what works best for your crew.  Mine all eat out in their areas and mostly leave each other alone - except Ted who is a turd sometimes.  But having Ted eat in his crate doesn't mess things up for anyone else or Ted either.