... all the pens i've researched are up off the ground with the wire bottom ...
For research there are some good threads on the forum over the last few years on quail management. Most (not all) byp people seem to share the feeling that running quail on wire is slightly barbaric at best. Shairlyn's analogy of battery hens is fair - people keep them like this "because they can" - it does slightly put the dollar or whatever benefit above comfort let alone quality of life. Guinea pigs and rabbits are often run on wire for the manure collection benefit - they suffer horrific damage to their feet.
Agree that it is difficult to do colour specialty etc in one large pen, and the males do fight and kill one another, so the trick is to find a way to separate groups to give you control of age/breeding/colour groups without compromising fair conditions for the birds - bit of a matrix but do-able.