I just received my 15 gallon kettle from OBK today. I got the 3 piece SS ball valve and a dial thermometer for the ports. The first thing I noticed was the build quality. For $109, I expected it to be a bit flimsy, but it's a solid kettle. The edge is rolled at the top, so that provides some extra strength too.
One thing that a bought at the same thing that I thought should have at least been an option was a SS elbow and close nipple for the inside of the kettle to use as a pickup tube.
Anyway, can't wait for brew day