Oh dear, it is always so difficult to lose a kitty like this. My heart goes out to you.
I know I don't have to tell you this, and everyone is different, and there's a "time" for everything. But there have been a few times in my life where the tragic loss of a kitty is closely followed by the adoption of a stray or a kitty that was on "Death Row." To me, this can help take the heartache away a little bit.
But, this is not how it works for everyone, and I realize that.
I pray that whatever happens for you, that you will have comfort. You gave Scratch a good life, and that's all we can expect.
The TCS team would like you to know that we are so very sorry for your loss. Threads are locked after someone has suffered such a loss, as a sign of respect. We invite you to place a tribute at http://www.thecatsite.com/f/19/crossing-the-bridge as an enduring testimony to your friend.