I have put together a server for Infamy 1.4.1. It is a forge bukkit server, I did test it and it has essentials pre-installed.
you can just take it out if you don't want it. http://www.mediafire.com/download/eca6n1m8f62lae1/Infamy 1.4.1 Server.rar.
I don't think there is anything wrong with it...