Ok I tried 3 of the ports on the back. I got excited because I found a mistake I made. In the makeinstall i was just selecting the usb drive by putting in "2" but I also needed to select opencore install or "2o". This still did not make a difference. I'm sure my ethernet is working. For my sanity, here is my methodology of trying to install this:
1) I updated the firmware to A25 of my USFF Optiplex 9020.
2) changed bios setting (and hidden bios settings)
3) Ran everything in gibmacos then deleted that efi partition and on the usb drive I'm copy/pasting ONLY the EFI folder from the root of 0.6.9 OC EFI.zip into the root of the USB drive now labeled BOOT
4) eject and put in usb slot of USFF computer
5) I tried both selecting the usb drive from F12 boot menu and just letting it boot. - When I select it from F12 menu I go to install macOS and this either runs and displays the apple logo then errors, OR goes to the install macOS menu. Letting it just boot similarly goes to apple screen then errors.
6) When I get to the install macOS screen I erase the whole disk and put in APFS format and GUID and name it
7) I go back to reinstall in the menu and start the install process. This either gives me a error at 2 minutes left about "pkdownloadError error 8" OR restarts, goes to apple logo and errors again. - I think if the ethernet was really not working it would have told me right at the start, because I have dealt with that before.
This is what my usb drive looks like:
This computer does have wifi but maybe theres a kext missing or something, I don't think I can access that from macOS install menu.
I have to take a break from this for awhile because I'm going crazy (O.O)
Thank you for your time! I'll be back.