Oh Carole, I really hate to say this but in those pictures, he looks like he's given up. I don't see any will to live. I know it's going to hurt you to read that but I saw this all too well in Max in the days before I helped him to the Bridge. I found that even before Max left me, I was browsing Petfinder just to see....and I felt guilty for doing that. Don't feel bad for getting your "ducks in a row". Preparation is necessary and oh so hard to do. I'm glad you've picked out a nice spot for him - I'm sure he will be very happy there and will watch over you. When he gets to the Bridge he will be whole again - his tired old, weak body will be restored to the Ash you knew before.
I was right where you are now and I hurts more than words can say.
I feel your pain and taste your tears. Cry, cry and cry some more if you must but take comfort in knowing that we are here and understand and we "get it." You are putting Ash first and are doing what's best for him. He knows you love him. 
{{{big hugs}}} slick xoxo
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand and strawberries in the other, body thoroughly used up, totally worn out, and screaming WOO HOO - What a Ride!
--unknown
Sometimes the most real things in the world are the things we can't see
--Polar Express
Until one has loved an animal, part of their soul remains unawakened.
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