Thank you so much everyone for your thoughts. Posting here, going through all our pictures to find his and posting those... it's been really therapeutic. I remember after we first got Jengo and my son had fallen in love with him he asked me why dogs don't live as long as us. I told him that that was just part of the contract. Our dog loves and entertains us, yet we do the same knowing that more than likely we will live longer. I coached him to enjoy the time we have together, take care and protect him, and not to worry about the rest. Sure is easy to say.
My previous pup was a rescue as well. He was my bachelor dog. I rescued him when he was ten months. I sat with him on my lap as he was put down at fourteen and a half. Loved that dog. Took almost five years before I was ready to get another. I was concerned that I'd forget Muddy Buddy, or that I might not bond well with a new pup. Both concerns proved wildly untrue. I enjoy and miss having a nose in the house. I won't wait that long again.
I have a few irons in the fire now. So, we'll see where the trail leads.