Thanks a million everybody!
I am not really all that concerned with the shape on the strong side, but I want to ditch the ambi, and figured I may as well have what I like while I'm at it.
I posted this on another forum and a fine Army man is sending me one to try. I will very readily purchase another one from whoever has one for sale, since I understand that fitting could wreck it for a different gun. I'd offer my factory ambi to anyone who wants it, but I've butchered the off side pretty severely to try and make it go away.
Best regards, and thank you all very much for taking the time to help me out!
Very Respectfully,
Steve.