Thanks, Big. I was planning on doing a proper baffle wall, just without drywall being used on the baffle wall. The area behind the baffle wall would be drywalled of course. Perhaps my question should've been "Can I just affix the screen with Z hangers to the baffle wall?"
Alternatively, I picked up 5/4" primed pine. It's not finger joint pine, but it's straight (at least now). I found 1" (really 3/4") finger joint poplar which I plan to use as the cross post. Looks like I may just do a minimalist screen wall in front of the baffle wall. Poplar should be stronger than pine (but slightly pricier).