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Hi, I'm Mike G and I'll be assisting you. You might consider using a screw in cable hook to separate the wire. One hook every 5 ft up off the ceiling framing below.
You can lay them on the wiring in the crawl space keeping 7 ft. Away from the shuttle or stairway. The hooks would only be a more organized application.
Attic high enough to stand and has a floor, crawl space is access area over ceiling, no floor.
Check the link below for a GI-BR-100-WS. IT'S A 2 INCH open ring wood screw in hook $1.35 EA.
Here's the hook
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