I find now sources and could build for /e/OS-R. Please provide feedback if ROM works.
manifest_motorola_potter_18.1.xml
https://sourceforge.net/projects/eosbuildsronnz98/files/MotorolaSmartphones/manifest_motorola_potter_18.1.xml/download
Moto G5 Plus (Potter)
e-1.18-r-20231217-UNOFFICIAL-potter.zip
https://sourceforge.net/projects/eosbuildsronnz98/files/MotorolaSmartphones/e-1.18-r-20231217-UNOFFICIAL-potter.zip/download
e-1.18-r-20231217-UNOFFICIAL-potter-recovery.img
https://sourceforge.net/projects/eosbuildsronnz98/files/MotorolaSmartphones/e-1.18-r-20231217-UNOFFICIAL-potter-recovery.img/download