There are approx 8 photos of Ft-T flats plus some more of the identical Ft-U.
There are approx 8 Ft-M and Ft-16 photos as well.
The book states that the Ft-M was re-numbered to Ft-16 implying that no charges were made other than the class designation.
No plans of either, but one of the Ft-U photos is dead square to the side of the car, so could be photocopied at the appropriate size to provide a side elevation if you want to scratchbuild one.