Updated 8/12/2018:
Backdrop installation continues. Steubenville (Panel 1) was installed last night. This afternoon, we have installed Panels 2A and 2B (Hills on the Ohio side of the river).
We forgot to apply Peel Stop to the area that will hold the river itself (Panel 3 Bottom). We just did that and are now waiting for it to dry.
More when I know it.
George