Well, using the androidupdate.tgz method to create a patch simply didn't work for me. I'm still messing with that method, but to get it pushed out for some testing, I ended up downloading our NAND FRX05 and copying the missing files over to FRX06. This is a quick and dirty method, but here's the files that were missing between the two:
/first-time.sh
/sysinit.rc
/system/bin/netcfg
/system/bin/run-as
/system/bin/su
/system/sysinit.sh
/system/etc/dbus.conf
/system/etc/init.goldfish.sh
/system/etc/bluetooth/audio.conf
/system/etc/bluetooth/input.conf
/system/etc/bluetooth/main.conf
/system/etc/dhcpcd/dhcpcd-run-hooks
/system/lib/invoke_mock_media_player.so
/system/lib/libterm.so
Edit: Well crap, there must be something I'm missing since data won't work... Got it booting in, wifi works, but no data