As an SR-22 owner, it is a fantastic gun, really well made and actually surprisingly accurate even out past 100m.
A good friend has a regular 10-22 in the ATI stock and I have shot it quite a bit. Both are nice, but the regular 10-22 in an ATI certainly is a bit lighter.
One advantage of the SR-22 in my mind though is it's heavier weight barrel, which would likely be an upgrade going the custom route.
Personally, if you are using this just for hunting gophers, I would take @gopher73's advice and go for a bolt gun (cz455 is reaaaal nice!)
IF you want a .22 that is more "tacticool" then I would definitely take the SR-22 over one of the plastic aftermarket stocks.