Hi ! The link is deadOk, i made a magisk module for you if you want to try it.
Build_prop-LMI.zip
1, download the file
2, make desired edits to your build.prop file
3, copy your build.prop file to "system" folder inside downloade zip file (maybe use PC to drag and drop)
4, flash to magisk
5, reboot device
NOTE: have twrp and a backup, just incase
If any booting issue
Boot to twrp and delete "data/adb/modules/BuildPROP"