Question about drapes
S&S formal drapes of this era are unique from the aspect that the valances are sewn to the vertical sections, but they are not connected in the middle. In other words, the drapes separate in the middle, with the left and right section of the valance connected to each respective vertical part. When the valances are pulled tight to the middle, as seen in this ilustration from the 1973 catalog, everything looks connected.
This was changed in 1977 when all three pieces were sewn together as one.
Josh and Kurt, if both of you want your drapes to be 100% authentic as formal style, I suggest starting from scatch and using the brochure photos as guides. For real-life templates, I believe the Victorias owned by Kevin Parkinson, Tom Hoczyk, and Mike Barruzza have the correct drapes.
Since S&S coaches were the "top of the line", the vast majoirty of hearse drapes were made of heavier, wool-like material. Ambulances, of course, were an exception and came with the nylon airline-style drapes.