I found a way to play LSPDFR in offline mode with game version 1103. It's important to make a backup of your files.
Once you have version 1103, don't let Social Club update your game to the last patch. After the backup you can update.
Follow this guide: http://www.lcpdfr.com/forums/topic/52764-how-to-avoid-rockstar-updates/
The back up consists of GTA5.exe, GTAlauncher.exe and your update.rpf file inside the update folder.
In the GTAV folder, change the commandline.txt and add --scOfflineOnly.
Let Social Club update to version 1180, paste your backup 1103 files back in the GTAV folder (and update folder)
The last step for me was launching RAGEPluginHook.exe with my internet disabled. I can only launch LSDPFR this way. I have to pass 3 loading screen to launch it
(1x press offline mode, next screen again offline mode, last screen is e-mail login.)
Once in game you can activate your internet if you want.
It's possible that you have to reinstall some files that you installed through OpenIV (like cars or textures)
Also important is to have Social Club version that is compatible with the version of your game (which is Social Club 1.2.1.9 for game v1103)
I guess 1.2.2.0 is for version 1180...
https://howfix.net/file/download-rockstar-games-social-club/