It's funny that you nicknamed this kitty Squirt-kins because I took in a little girl kitty that I thought was about 6-7 months old and found out from the vet that she was actually over 1 year.
She was such a tiny little thing weighing only 6 pounds.

I called her, Squirty-bums.

Good luck with your plan, it sounds like a goody and like NK said, "You are not stealing her" but to me, you are saving her life.