My biggest recommendation would be scratchbuilding - depending on the quality of the interiors, making small seats in HO scale wouldn't be the hardest. Otherwise, some details companies may make white metal casts for seats and benches that may fit. A caboose stove and some mail bags or milk cans (the recent episodes of the MRVP Olympia and Sand Creek/Olympia 3 cover David Popp detialing a combine which would have similar interior fixtures, albeit in On30) as well as a conductor's desk, depending on the specific Drover prototype you are looking at.
Dear Folk,
I have not been able to find interior details for the MDC Roundhouse Drover Caboose. I have a Durango Silverton train with interior details for all the passenger, dining, and combine cars. Would be nice to have interior details for the caboose. Any leads of suggestions?
Thanks,
Mike