Have you considered trying out CentOS on those ops servers? There's plenty of support and documentation online. Package versions do tend to lag a bit, but I believe Python 3 is available (EDIT: It is... http://sopel.chat/python3-centos7.html ).
Python 3 is a compile it yourself on centos I understand.
https://access.redhat.com/products/Red_Hat_Enterprise_Linux/...