You might have already done this but I think that the way to go would be to set up the cruise control to work off of load or TP instead of speed. I've found that I get better FE witout the cruise countrol.
What would be perfect is the HUD for ILS approaches on aircraft -- as I understand it, it's basically a clear overlay on the "windshield" that acts like a LCD to line up approaches using animated boxes and data, such as wind-speed/direction, airspeed, altitude, etc. -- but can still be transparent. It has to cost a fortune, though.