Wow, this thing is coming along great, and fast. Wish I could spend a quarter of that time building, I might actually finish something.
The headers don't look so bad, your cleaning the flanges seemed to work wonders. Did you see Wayne's tutorial on custom headers? I was just wondering if that would have helped you any in recreating them to look more like you wanted. I think they look pretty good, myself, though.
The trailer is looking pretty sweet. The color is nice, very realistic to the ones I see around here. (And I see a lot)
Very good build.