Tig welded it in - hammer and dolly and grind somewhat smooth.
block and sand across with some 80grit and hammer and dolly some more - - then I tried out my new toy (shrinking disk) - - hammer and dolly, shrink, hammer and dolly and shrink - until it's where I wanted it. I did the same thing on the other fender.
It's not perfect, but it's one of the better patches I've done to date - just keep practicing and trying to get better.