Accidentally broke lower display ribbon cables

Hello all!

I did something really silly: I was replacing a lower speaker on iPhone 8 plus and I accidentally broke the two lower display ribbon cables when removing the screen (see attached PIC #1). I have a couple of questions:

1) I was wondering if it is possible to replace only the metal tray/bracket part on the display assembly where the ribbon cables connect to the display? Sorry I don’t know what this part is called, it’s the big metal part that covers the back of the screen, it looks like it’s held in with 10 screws (see attached PIC #2). I would like to keep as much of the original screen/display assembly as possible, so I was hoping to just replace this metal tray/bracket part on the back of the screen where the cables connect so I can keep the original front screen.

2) What is this piece called? So I can hopefully buy it separately. Otherwise I assume I can buy a whole aftermarket screen and pull it apart just replace this back piece, so I wont end up using the aftermarket front screen. Thank you!