Hey... I'm sorry about your cat.. I know we haven't talked in a long time and miss you a bunch. But in the past you've helped me several times, so now I want to try and help you.
Just think. Smokey was in pain. Having him be put down is for the best rather than have him suffer the rest. I know what it's like to lose a pet... if I could go back, I would save my cat, Charlie, from the car that hit him. At least you have the upper hand of tell Smokey good bye. c':
When my dogs died, I kept their collars and dog tags and keep them safe in my room so I wont lose them. If something of Smokeys is with you, why not try what I did?
I don't know if I'm being helpful or not, I can never tell anymore.
But bro, I'm here. I'll be here for as long as I can for you and try my best to make you feel better.