I feed frankenprey in the morning and canned at night to 4 cats. I hired a sitter to come and feed them 2x/day while we are gone in Feb for 10 days. It is expensive, but factoring in care in your absence is part of being a responsible pet owner just like regular vet visits. Leaving a cat overnight is ok, but longer than that, things can get complicated and go downhill fast if anything goes awry.
As far as the kibble, it's not ideal, but as long as you wait 12 hrs in between feeding kibble and raw, you should be ok. I wouldn't recommend doing this on a daily basis, but in a pinch, it can be done.