Post it up in that thread and see what comes of it. For now lets try and figure out your audio issue.
Considering everything else is set, it must be that your set up needs a different Layout ID. So this will be kind of a long trial and error process.
But you need to mount your EFI drive. Navigate to EFI-Clover-Config.plist, open it up in Xcode or a Plist Editor. Find Devices-Properties-PciRoot(0x0)/Pci(0x1f,0x3)
Expand that you'll see layout-id with a number next to it. It's set for 29 at the moment, that is what the majority of the Razer Blade 15's use.
Attached is a screen shot of possible Layout-ID's for the audio card in this laptop. You just have to pick one, add change it in your config.plist and then reboot and see if audio works. Do that until you find a layout-id that works for you.
I've also attached a screen shot of the part of the config.plist I'm talking about.