Herb, on RT Aerospace's page Ray has a 65 337 listed for sale. The last mod has a rigid celing mod. guy...
www.rtaerospace.com
MODIFICATIONS:
RT AERO GEAR DOOR MOD
RT AERO CARGO POD
RT AERO O2A TYPE ENTRY DOOR WITH FLIGHT OPENABLE WINDOW
RT AERO CONVERTIBLE AFT BENCH
SEAT/CARGO COMPARTMENT
RT AERO WINDSHIELD CENTER POST DELETION
RT AERO O2A TYPE BUBBLE PILOTS SIDE WINDOW –GROUND OPENABLE FOR TAXI
"RT AERO RIGID CEILING MOD"