I've been to several large and extensively competitive games over the years. Honestly, if you need an over abundance of refs then there is a problem with your player base. I personally am a fan of having lots of "in game" admins though; kind of like secret shoppers.
Players/teams that cheat usually do so because it's in their nature. I would just remove or ban individuals that cause issues to set the example. If someone is calling their hits and playing sportsmanlike only because someone is looking over their shoulder, I wouldn't want them out there.
Just my thoughts. Your game idea sounds fun though.
ďREALITY IS LIKE A STONE. TO MANY ITíS HARD AND COLD, THEY CANíT HUG IT OR EAT IT, IT ONLY FRUSTERATES THEM AND DOESNíT DO THEM MUCH GOOD. TO OTHERS ITíS STRONG AND DEPENDABLE, YOU CAN BUILD WITH IT, BUILD UPON IT, OR WORK WITH IT, ALSO USE IT TO SMASH PEOPLE IN THE FACE.Ē