I started from scratch once again, trying to see exactly where things went south.
1. I tried first with a default Unibeast USB stick, I knew this wouldn't work, but that's my baseline.
2. I then worked with Erik's EFI from the first post, the only difference being was that I was using 10.13.2 / This results in a clover boot loop. This was just the same as what happened earlier in the thread.
Current State:
I updated the Unibeast stick via Clover Configurator with the new
Lili kext version 1.21. This resulted in a successful installation. Upon a very long re-start I was finally greeted with (after-restart image).
I don't mean to hijack this thread, but I am using Erik's EFI on a different motherboard (I have the Fatal1ty z30 version). Should I just start something new in the High Sierra Desktop support? I feel like I'm so close! I'd appreciate any advice, if there's anything I can trouble-shoot I'd be glad to investigate fully and report back. We'll get there!