Take a clean install of Strive 1.0a. Unzip the files for these three mods into the mod directory. Start Strive, from the Strive menu take option mods, you should see the three mod titles so select them together and apply. Restart.
Viewing post in Leo's mod for Strive v1.0
If you go into the slave guild you should see options for shop and charity scheme that are not in the base game.
Have you got any errors reported in the 'godot engine editor' screen that launches at the same time as Strive? Are you sure you started from a clean installation? Have you managed to get other mods working?