Ok the link to download the sub mod is
THIS
Make sure you check it in mod manager and that it loads BEFORE hellenika part 1. If you see it after then change the name in a way it appears before.
I did not have the time to check if it works but it should be ok. It will start working from the next turn of your save game and it will only allow replenishment in Rodos region for Rodos and Byzantion for Byzantion. I will return again for 1 day in 1st of August so if you spot any problems maybe I will be able to fix it for you then
Have fun