We are going to do the first sub q in the morning, he will hold and I will do the needle. I love the idea of a cat sack. At least she is small and slender to hold. Thanks for the tips! Will let you know how it goes.
The (empty) bathtub, on a towel, might be a satisfactory site for that too. Kneel at tubside, hang up fluid bag on clothes hanger on curtain rod, and go to town.