This roof is to aid the kitbashing of a PCF 6505 Plate F 52ft 6in boxcar. Use Cannon and Co Bifurcated Box Car Ends (BE-3002) along with a Athearn Genesis G4100 60ft Boxcar (see http://www.pbase.com/dh30973/image/127202718 )
This roof may work for other 52ft 6in cars that use a Stanray X Panel roof with Frame Caps, note the panel pitch is different to the welded versions typically used by FMC. Note, FUD is a difficult material to modify, thus I do not recommend using this roof on a 50ft 6in car, I will develope one soon.
On hold while I do some tweeks.......