So the issue with the midbass is pretty much solved. see this thread:
I'm planning to start the A pillar pods this weekend. But first I made a small upgrade to the amps.
Polk must be clearing old stock because you can grab the PAD2000.2's for $50 each (these are the same as the PPI 600.2). Great $/watt. I'm running one to each midbass. These replaced some very old Kicker 250.2's I bought 10 years ago. I was planning to grab a second nvx 4 channel to clean up the install a bit but this was such a great deal. I considered grabbing another to replace the subwoofer amp.
https://smile.amazon.com/gp/product/B07HNRLCXC/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
some before and after pics. apologize for the wiring disaster.