If you are making factions,please make the faction property unprotected,let it be a secret base,underground,not a 1 man faction with protected land,its so unrealistic.
I want that too,but you are only going to get it if you whitelist the server because there will be bunch of little kids joining the game and griefing.
PS: I played on a Whitelisted Tekkit server a long time ago and he had a plugin that can see every block that was removed and chest opened or something like that.
There was never any griefing because of that witouth need for extra plugins.