Many thanks to those who provided me with the pdf from the SCL webpage, especially Larry Kline, Dave Sieber, and Jerry Glowacki. I am now in pretty good shape when I get to work on my kit. One question (perhaps to Richard, who did the original article): what kind of brakewheel for the original vertical-staff mount?
None of the prototype information available to me spelled out exact;y what kind of brake wheel, so I just used the 5-spoke circular (not scalloped) Tichy brakewheel in HO scale.