Lisa, thank goodness you put the "He's ok" in there, cause when I first started to read the title, my heart did a major thump.

Well, from all that I have read Lisa, it seems to me that you have your heart set on #1 and if I was in your position, that is the one I would pick also. If Magoo is starting to get real comfortable with doing it this way and it's okay with you guys, than why change it.
Number 2 is definitely out.
The thing about #3 that bothers me is, "It should fix it."
The word "should" is not a guarantee to me. The surgery is not necessary right now and can be put on hold, if or when it does become necessary.
This is just my opinion as you know what is really best for Magoo.

Have I told you lately how much I love you Magoo.

Give that sweet boy a big hug and kiss for me please.