Oh I'm so sorry. What a difficult situation and decision. My heart aches for you.

It sounds like you've gathered a lot of information about the choices, and that's a good thing. I wish there were easy answers that weren't painful. All I can recommend is to listen to your heart and to pooch's heart as best you can and go with that. And whatever you decide, please know that if you decide with your heart within the context of the knowledge you gathered, you can't make the wrong decision.

((((((((((jsmua))))))))))

gg

edited to correct a misspelling
And then edited to correct the misspelled edit. Bah!