If you need advice on how to create a men-only group [...] But expecting me to fund, sysadmin and provide resources [...] weird to me. Can you explain it?
I don't expect you to. It's simply a reason why the "toilet block" analogue doesn't work as an excuse for segregation.
About "men-only", please see my previous post http://lists.debian.org/debian-women/2004/08/msg00237.html
-- MJR/slef My Opinion Only and not of any group I know