Poor Scout and Hanna! I'm sure they'll be alright. Since I always had female cats, I don't have experiences in neutering, but I don't think it's so bad! When I had Katz and Luna spayed, there was this problem that they did not want to rest, they crawled around until they could walk again. In Katz' case, this led to a hernia later, so better keep them in their carrier until their weakness has gone.

Good luck for both of them!

Kirsten