Bruning,
Sorry I wasn't trying to come across suggesting (although I did not intend to) that your work was overpriced or anything. I can imagine that it is always cheaper to have it done right the first time... (unless you are someone who just simply doesn't mind hack work which I'm sure there are some out there. Your work looks great, actually it made me go home and get behind the tig torch last night for a while.
You said though that the whole inter fender well panel will be fusion welded (no filler rod?). Just for reference what type of amperage do you have your tig set on when you do thing gauge sheet metal work like that? I seem to warp thinner metal like that, but I'm sure that has a lot to do with skill as well.
Anyways, please keep us updated on the progress... love the pictures!