did the 50 have the tensioning rods on the underside of the hood? - they're not symetrical, so one would be slightly longer - should find some bolt holes in the hood to check against
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics