MER convention cars

Hello. I have two HO scale Main Line all wood kits in original boxes. One is prelettered for the 1946 MER convention and is mostly assembled. The other is prelettered for the 1964 MER convention, and is not assembled. What was the original intent with these cars? Would it be a sacrilrge to letter these cars for my home road? Am I supposed to run them as is? What if I just use the reporting marks and a number on the sides, on the car ends? What is the right way to prep the cars for paint (the ends, underbody, roof)? Should I use flat paint or glossy? How do I prep the strip wood? Remember these are wood kits modeling prototype wood cars. Ben

Ben - NMRA convention cars are generally completed as intended and displayed, particularly early ones like these. There are at least a few guys out there that have extensive collections of such cars. Considering their age, it is unlikely that many examples survive today and they really should be preserved. It probably would be nice to sell or donate them to some facet of the current MER.

CNJ831