Black Screen issue Nvidia Web Drivers after 10.12.6 16G1036 Security Update

Two days ago I decided to give in to the App Store and install that security update it had notified me about for weeks. I shouldn't have.

My Web Drivers worked just fine on 10.12.6 16G29, now they either don't load or, if they load, the signal drops while booting and I'm left with a black screen.

Here's what I have done so far in an attempt to solve this:

• Changed system definition from iMac 15,1 to iMac 14,2.
• Disabled SIP
• Added kext_dev_mode = 1 to the boot args.
• Installed Lilu.kext + NvidiaGraphicsFixup.kext in L/E
• Put Lilu.kext + NvidiaGraphicsFixup.kext into EFI/Clover/kexts/Other (also edit config.plist so that kexts are always injected)
• Followed steps described under "Problem 6" here. (Clover was already installed with those options on my machine, anyway)

I'm running out of ideas.

You can find my config.plist here.