Yesterday I brazed all the seams on the oil tank, filling all the pinholes. After about, oh, 10 attempts, it finally completely passed the pressure test. No leaks! I refuse to be that guy going 80mph down the freewat who's oil tank starts leaking and spraying all over his back. I've seen it happen. It ain't pretty. Speaky of not pretty, the tank might not be the prettiest thing, but it's solid, and filler does amazing things. Time for paint.