I do hope funding is sorted - neutering adults before they leave is soo important, and especially with a cat of that age, as if she is homed without and her owner lets her out, it could be quite bad for her. Also, you might want to ask them to inform their new owners to do a monthly breast check on her, as she will be of higher risk of mammary cancer later in life (average age is 10) and if picked up quickly enough, it can be dealt with.