I'm so very sorry for your loss of Kodiak, he was a beautiful boy.
Your tribute to him is beautiful, I can tell he was cherished and a beloved family member. You have a very lovely family.
It's always hard losing a dog that means so much to you, the first one in particular. I've lost 5 dogs over the last 17 years and it never gets any easier. My most recent which will soon be two years, was our Golden who lived to be 15.5. You don't know how much they mean to you until they are no longer with you. I'd forgotten how much it hurt until it was his time to be set free, but it also made me realize that with time, the pain would ease.
Cherish your memories, give yourself and your heart time to heal. I hope with time you will be able to find peace with his passing and eventually will be able to open your heart and home to another Golden to love.