Replacing/splicing MacBook Pro Retina 15" A1398 Wifi iSight cable

A while ago, I replaced my battery and fixed a speaker. But when I did, I broke the end of the iSight cable, so my camera no longer works. I have been fine with this for awhile. I did some research recently to see if I can just replace the cable and I found that this cable actually has other repercussions if it is not plugged in, like SMB not working correctly, which i have been experiencing.

So the question is, is it possible to just replace this cable? From my research I've ascertained that it would be much easier to just replace the entire display, but they are still expensive for a good one, and mine works fine. Alternatively, if it is not possible to replace the cable, end to end, would it be possible to splice a new connection at the end I broke? I realize this would be difficult, but im wondering if it is technically possible.

Thank you!!