After a bit of cussing, I have it pretty much welded-up again.  The issue was even though the hole was small, the surrounding metal was pretty thin and kept enlarging the hole as I welded it up.  A lot of short blasts and cooling off with air.  Hope to grind it down tomorrow, but will not be as picky about how smooth I get it and will coat with some evercoat to seal it up.  I used my copper backing plate which considerably helped…

Hope to sand it down tomorrow,..

Also need to replace my water trap in my air line as I detected a leak in it today – more cursing…  🙁