Just got done replacing that front curved piece on our 1990 Shadow Cruiser. Thankfully the inside paneling was l that was dry rotted, apparently from a previously fixed leak at one edge of escape vent. Found no frame rot and roof solid so just replaced old insulation with heavy duty stuff recycled from construction site and new strip of paneling. Had already resealed entire roof full of seams around everything. We are fortunate to have a 30x50' barn to store it in when not on the truck so repairs easier to deal with.
