Well, spent some time this very hot evening installing the 2nd caliper after getting the front wheel back on. Not bad, but it was a bit tedious tightening up the mounting bolts a 1/2 turn at a time.
As you can see, I powder coated the calipers black, polished the brackets and powder coated the disc retainers a pale gold.

The pads are aligned very well fore and aft, but slightly tilted on the discs vertically by about 1/32". I'll try to deal with that later. The shop's AC is on the fritz so at 10:30 p.m. it's still in the upper 80s after baking in the sun all day. But, by the way, the Fat Tires were icey cold.

Here's a side shot of the new box swingarm and the brake stay.
