Regarding the tank, I will have to say, that besides the constant delays in delivery and the incorrectly placed filler neck, the tank appears to be built well. He told me his welder quit in the middle of the job. So, I cut him some slack. In the end I finally got my tank. It's no show piece (I didn't expect it to be) but all the welds look acceptable and he did install AN fittings as I requested. Although, one fitting looks like it was damaged and "repaired" on the sealing surface. In hindsight, should have just had him install NPT bungs. Anyway I'm going to pressure test it with AN caps soon...before I put fuel in it.