I visited JS Audio in Bethesda, MD and they had a RAAL system. I live in the Washington DC area. I have not explored elsewhere. To bad you did not go to CanJam NY couple months back.
After my posting last night, I believe the RAAL system may be what you are looking for. It’s basically putting 2 ribbon monitors on your head. Coming from a 2 channel environment its an easy transition. Keep us posted.