Where did you get the ends? I am looking to do NS’ Buena Vista and Conrail’s theater car too.
The theater ends are produced by Train Station Products. I modified the ends with bits of styrene and brass as can be seen in one of the pictures above. The kit from TSP includes the plastic theater end, the glass, and a piece of plastic that can be used as a roll up door, although I decided to build my own instead.
Those sure turned out nicer than my attempt at creating a Pennsy theater car. Nice job, And I will have to order that end and sides from that site…I am planning to do a creation of the Wheeling’s car.