I know a few quiet out of the way Hi tech systems in Li Yong Rui space with ready access to pristine mining, trade and bounty hunting via HiRes and CZ sites. It's also central to Federation and Imperial space. I use Jadlillke as a home base already and I rarely see human commanders there except for those I invite and show the way. Most ships and all modules are available in station or within 1 jump.
The hi tech system is Jadlillke, with the high population industrial refinery world, Huiche, being 1 jump away. Pristine and undisturbed mining can be had in Algol, a pretty system with no habitation. Sales of minerals/metals can be made in Ross 332 which is a mere 3.2 ly from Algol and 2 jumps from Jadlillke/Huiche. Have a tour around there and see what you all think. If you'd still prefer something outside of Powerplay territory, I know a few of those too.
For anyone who doesn't already know, all ships and modules are 15% discounted anywhere in Li Yong Rui space, regardless of faction or Powerplay allegiance. I'm strictly freelance with regard to Powerplay since I found it interfered with general gameplay outside of it.
I would suggest however, that as a group, Military Militia should be there to assist other players in game, since this goal isn't far removed from our real life mission as servicemen and women.