No I haven't, but I've got my Helms factory service manual to help me out with that. It just doesn't detail removal of the HVAC controller.
I seriously have to drain the coolant just to remove that front panel?
Another thing, the manual says to lower the steering column when removing the dash. Does that mean just move the tilt adjustment all the way down, or do I need to actually disconnect it and lay it down? Or can I get away with just removing the steering wheel?