Any guides for Alienware 17 R5?

I have an Alienware 17 R5 with a bad video cable to the 4K display. Of course it is about 6 months out of the 2 year warranty package. Dell wants a crazy amount of money to get it back under coverage. I have a great iFixit toolkit and wouldn’t mind tackling the repair myself, but after opening the cover, the cable appears to be buried within the system and I’m not comfortable digging in on my own and I don’t have a source for the cable.

I’m using the system as a desktop replacement on an external monitor, so I don’t want to brick the system since it’s currently usable.

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