2019 Ram 1500 Laramie - Amp Rack Help for 2x PDX-V9 and PXE-PXE-0850S

Hello!

Well, I finally had time this weekend to remove my back seats and carpeted panel in the truck. Now I'm figuring out how I want to mount all the equipment. Going behind the seats are:

2x Alpine PDX-V9
1x Alpine PXE-0805S
1x Stinger 2x 1/0 gauge to 4x 4 gauge mini-anl fused distribution block (power)
1x Stinger 2x 1/0 gauge to 4x 4 gauge distribution block (ground)

I have both a 24" x 48" x 3/8" HDPE (black) and 48" x 48" x 1/4" ABS (black) sheets to work with.

Anyone out there with my year and model of truck who's already affixed their amp rack to the back wall? I'm just looking for some ideas.

Thanks in advanced!

Chris