Another "How do they do it" Question.

[Herb Collector]

Assembling and Truing Up a Complete Tractor Biplane.
https://archive.org/details/AirMinistryPublication1107ManualOfRiggingForAircraft3rdEditionFeb1931/page/n133/mode/2up
This was published towards the end of the biplane era, but it does follow closely the notes given in the 1925 edition which I own.

Also
Waldo Pepper Standard J-1. Restoration update #10, Assembly & rigging, kermit weeks aircraft.
https://www.youtube.com/watch?v=y3IZLdP2ClM