Will,
Nice site. In addition to Westerfield you may also consider LaBelle Woodworking kits for passenger cars. I'm half way through a 3 car consist of their open platform kits (combine, baggage & coach) and the are beautiful. At 50' they may be a bit longer than than the MDC's Overton Car's (probably similar to MDC OverLand cars), but it might be worth checking out. They may also have some freight cars as well. Their site is at
I've recently transformed my modeling interests to late 19th/early 20th century as well. My plywood pacific freelance diesel layout was going nowhere. So now I'm researching and planning for a 1900-1905 model of the Central New England Railway shortly before it was absorbed by the New Haven. I'm finding having a specific prototype gives me a roadmap so I don't have to make everything up and the research into local history is rewarding in its own right. True, I'm still using a "close enough" approach, but there really aren't too many people alive that can critique my plans with much authority! :-)
Good Luck and keep us posted.
Chris in CT