You should suggest it, but I am telling you, it WILL be more excuses...

Have you given her a vet reference? If so, you can ask her WHY would you spend money on other cats, just to adopt one to kill it? That would be simply outrageous to even think...Maybe agree to make a vet appointment BEFORE picking up the kitten, and give her the info to see you are truthful. Your vet could vouch for you. I know mine would.

I hate to say this, but I truly dont think you are getting this kitten. I think she is yanking your chain, OR just does not want to be bothered with it. She wants to help, just not enough to get off her lazy butt and do it.. Seen that all too many times before

Either way, I pray for this kitten. I hope someone knows of this kitten, and the location, and takes it. Maybe someone else will cross its path that will love it. *wishful thinking*