Mike,
You are right about the bracket for the passenger side light. I've seen several different styles of brackets, and I've personally had three different versions that came from Rob Read at CHP.
Check out the difference, as an example, in the magazine pic you posted above for the bracket holding the red and amber.
http://www.specialservicemustang.net...hotrodding.htm
The bracket is much shorter (like the passenger side one in the same pic), than yours, or the one that was on my '82 (bottom of the pic below).
http://www.specialservicemustang.net...usmustang2.htm
Mine had the longer bracket, which isn't shown in the Resto doc. The existing holes line up perfectly.
Anyone should be able to take Matt's bracket and move the upright over to make it work.