Alright. Not diggin' the sticker one bit. The concept is pretty simple. Positive path, negative path. Insulators between. Fiddled with it, got it to work with the bottom off. Placed the bottom cap on with the battery still in place, put in one of the screws, which of course shorted things out. A small smoke emission, and the screw burned my finger.
After cussing and spitting, I fiddled some more. No love, no lights. Fiddled some more, it got hot. Need to dig out a my Fluke dmm and check out what is shorting.
And, despite some effort to torque things down, removing the battery tube removes the base which requires complete disassembly.
And, the battery tube is not completely parallel to the nivel/atty tube. You can see of that in pig's pic earlier in the thread.
And, why so many freaking parts? Screws, insulators, brackets, tubes, sleeves, springs, button shaped things.
Not sure whether to fix it or tie it to a cinder block and let it sleep with the fishes.
And, it ain't cheap. Grrr.