MBS, I'm very sorry that you've lost your friend. It's a sting that's unique, much different than losing a person in your life.
He was clearly a happy little champ and you were a loving parent.
It's been about 2 months since we decided to let our 13 year old cat go. The decision to go forward with it was the hardest part, it took us about 6 months to decide. We were very blessed to have our vet come to our home for her.
I hope this is a bit of solace as you move forward, I have had cats all my life and all but 2 of them were lost through an accident or disappearance. Those losses were by far the most painful, much more so than deciding for them and being there. We miss her very much but are at peace.
Here's to Dreux giving Skim Cat a hard time and having lots of pals in their new life.