I don't have pics, but I made a long "L" bracket for the wall and matching short ones for the fixtures.
I guess they look more like straightened out "Z"s since one leg fastens to the wall on the long bracket and one leg of the short brackets fasten near the top of the fixture. Picture the result being an upward pointing hook slide (kind of) along the wall and a downward pointing hook slide (kind of), about 5", attached to the fixture. That way I can hook the fixture on and slide it in place. Also makes it easy to slide out for bulb replacement rather than moving the wash booth.
I also attached an "L" (this time a real "L") to the wall nearer to the bottom of the fixtures to maintain the same plane so they wouldn't be on a cockeyed slant.
I used two fixtures of 2 bulbs each. Wasn't real fancy, but this way air circulates around the fixtures, since I used the ones that said to only hang with the drop chains (these are a lot cheaper) I assume for heat dispersal for safety.