USB issues, Clover EFI badly configured?

I'm trying to gain access to the the post-install part of high sierra upgrade. I seem to be having USB issues, leading to a prohibited error. I've tried and failed to re-create my EFI with a compatible config and SSDT etc but to no avail. Verbose spews out something relating to AppleIntelXHCI, then 'Still waiting for root device'.

I've attached my EFI, please if somebody has any ideas where I might be going wrong, lmk.

Also worth noting, I am NOT booting from an external USB, but rather from the internal SATA SSD itself.

My specs:

MSI b150m Bazooka mobo

Intel i5 6600k

HD 530 IGPU

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This PC was working fine with Sierra - annoyingly :/

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Thanks