He will be himself again the very next day!

The hard part will be keeping him from playing with Shelby.

Are his rear dew claws loose? They should be an easy surgery...just make sure that he does not lick the bandages on his feet.
The neuter is also no big deal, and the baby teeth should come out easily also.
He would probably be fine to have his neuter,etc., done on a Friday, and everything should be good to go by the Monday...he would be fine if he is not watched for 5 days if you crate him when you go out.
Gina