Got one patch fitted, but ran out of room to weld it in. I really hate when I have to cut out good metal just to be able to access an area to put good metal back.
Ended up cutting out another piece to get a good weld on the inner patch.
With that chunk removed (upper left of the gaping hole) you can see where I couldn't really weld properly from lack of clearance. I simply couldn't get the nozzle close enough to get a proper bead.
And here's the piece fully welded in and coated with Miracle Paint. Ready to start on the covering piece.