Can the LCD and digitizer cables be replaced?

Hello,

My sister recently tried to open her iPhone 8 Plus, and during the process, she tore the LCD and digitizer cables cleanly apart, so one end was connected to the mainboard and the other one still on the screen, but the cable is not in one piece. (I can get some pics if that’s confusing)

I have since removed the cables from the mainboard and ordered her a new screen (as that’s what I know can be done to replace the cables), but in the interest of saving money (and possibly TrueTone), is it possible to save the screen and just replace the cables? If so, where can I get them?

Thanks in advance!