Grand Rapids 10" HXR with truly dual adahrs (two full air data units and two full ahrs). Comes with bonus WS display which can be used as backup attitude or dedicated engine display. New cost $9000. Asking $2600 for the bundle.
(NOTE: EIS 6000 also available)
Sample screen from grtavionics.com (lots more there)
dual ahrs (still installed in my IV-P/sorry you can't see much yet)