Check if you have a config in the Features.properties file.
If you don't have that file check inside L2Clan.java for levelUpClan method, there you can change anything regarding clan upgrade requirements.
Check inside L2TeleporterInstance.java, doTeleport method.
Hiring system:
Hire body guards to protect you, based on the amount of adena you pay the guard gets better stats/AI/skills. :happyforever:
- Option to set PvE/PvP mode
This either could be done with NPCs or even by players (with some kind of summoning skills)