I think I have the OK on two if I can get 'em there... ;-) Whether sister will go along with that remains to be seen. My family still thinks I'm insane for transporting any cats. I can't see two being THAT much harder than one in the car, though I don't have a carrier for both at the moment and it'll be awfully cramped. Still...
Cleo...I just can't see her making that trip. So...keep prayin' something turns up! I'm getting a little worried as I really should find HER, at least, a home before I move back with Dad for a short time before the trip.
Have you talked to a vet? Maybe some kitty calmers would help Cleo move.