I suspected that the unit that I bought on eBay was faulty and so I bought another from what appeared to be a legitimate source. I installed the new unit today and the bike has spark. So I will attempt to return the faulty unit.
Here are a few pictures of the installation, with numbered connections that correspond with the numbered instructions (image of instruction sheet in one of my prior posts).
Closeup of the mounting location and orientation.
And the reverse. This is shown because the pipe band that is included needs to pass under the master cylinder with no part of it interfering The orientation shown allows for that.
Here are the electrical connections for steps 3, 5, and 6.
...and, for step 7 (a little difficult to see but you get the idea).
Finally, the completed installation.