Welcome to the forum. It's good to read the posts from breeders that appear here, because all your suggestions and information is welcome to all of us non-breeders.
My heart breaks reading your wonderful story of Dinah - it is so clear she is a huge part of your heart -you will have such wonderful memories of her when it is her time to give up the pain. I also do not believe dogs don't have souls - of course they do - the unconditional love they give, the way they try to help when you are emotionally suffering, the joy they get when they see you coming after a separation - all these and more are proof they are very soulful. A loving companion dog is God's gift. All our hearts are with you, and our tears flow with yours. God bless.
Welcome and kudos to you for helping with rescues! It sounds like Kowboy was a great introuction to the breed. I'm sorry for your loss of him and Indy. this is a great place to share and keep memories alive. I'll keep my fingers crossed for a speedy relocation back to your family in CA!