Still trying to get it working, but even with all the requirements, the service aspect is still failing.
[root@GTWE1 init.d]# systemctl start e2guardian
Job for e2guardian.service failed. See 'systemctl status e2guardian.service' and 'journalctl -xn' for details.
[root@GTWE1 init.d]# systemctl status e2guardian.service
e2guardian.service
Loaded: loaded (/etc/rc.d/init.d/e2guardian)
Active: failed (Result: exit-code) since Thu 2015-09-10 15:46:06 CDT; 6s ago
Process: 6711 ExecStart=/etc/rc.d/init.d/e2guardian start (code=exited, status=203/EXEC)
Sep 10 15:46:06 GTWE1 systemd[1]: e2guardian.service: control process exited, code=exited status=203
Sep 10 15:46:06 GTWE1 systemd[1]: Failed to start e2guardian.service.
Sep 10 15:46:06 GTWE1 systemd[1]: Unit e2guardian.service entered failed state.