use the add_money cheat and buy each city of for 100-120k use more fd and process_cq to build walls and stuff thhen gift it back to romans,
i recommend u do it all till u push them epirotes back to taras and that other city south... then move them to sicily and when epirote stacks threaten to attack roman cities move_character them south to sicily until romans can build up new stacks etc...lots of micromanagement but its needed if u want to have any reforms in the game