I finally got my own VLAN setup working thanks to many contributors and starting points like @Soul_ . While I really enjoyed the excellent blog post by Renjie, it didn't fit my need specifically, nor was I able to adapt what he did to what I needed to do. I wanted both untagged traffic to flow...
So I read about a dozen or so threads with different advise and finally put together a script to create vlans on boot that seems to work as intended. Unlike many of the examples out there, my script relies solely on brctl and ip link to create simple bridges. I'm open to feedback if I setup...