I'm currently planning to upgrade the operating system and packages on amprgw (aka gw.ampr.org) Sunday morning Pacific time. This will take the system from FreeBSD 10.3-RELEASE to 11.1-RELEASE, since the 10.3 version will be going end-of-life in early 2018.
Good luck - and thanks for the effort you spend! No drastic changes like putting VMware ESXi underneath? :-)
Rob