You know, "we can rebuild it, better, faster, stronger".
It was a straightforward process of replacing the plastic faces with 1/4" aircraft plywood. Also, a 5/16" plywood spacer in between. The spacer was made of 1/4" laminated to 1/16" ply. It was process of Dremel work to fit the steel "movement" into the new wood case.
While I at it, I enlarged the hand grip to get all four fingers comfortably into the handle for high speed and aerobatic flight.
Trick or treat !! Flight test to follow.