Plugins for a nice Survival Server

Maybe add McMMO? There are some really nice features in it. Also you could make classes like Archer (perhaps speed 1 forever?) then Priest (haste 2?) and Mage which has 1 bonus heart. Just spitballing ideas rn.
Then you could make people upgrade their classes to unlock kits, items and other interesting stuff. For example level 23 could unlock a kit with a special bow, etc.
GL