Restoring function after death of video card?

So today my NVIDIA GTX 960 died, after I figured it out and switched to Intel integrated graphics and got to POST again, booting Sierra halts with a forbidden icon.

I booted again in verbose mode to see where it hangs and this is what I got:

https://i.redd.it/3xatbb2dshb21.jpg

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Does anyone know how I can fix my Mac OS install sans video card?
Also should I look at getting a new AMD card for Mojave support?