Exterior surrounding the screen is cracked at the hinge

I just got one broken one from some girl and said I can fix it. Hers is cracked and missing the back of the hinge and front even under the screen. Haven’t done the boot test and need a charger to do that. What and where would I get the parts even- for the rear hinge and screen? I don’t know even know whole thing to rebuild that part from. Would you just have to replace the entire upper assembly maybe for the the screen output to work? If that’s doable of course. I guess once I can boot it I can see or scrap it down for parts then.

I bought this laptop in 2015 and it's an amazing one for sure but 4 years in I have the same issue the monitor's rear case is cracked and I might have to change the monitor case entirely. Let me know what you guys did to fix it.