I'm not a wooden freight car expert, nor do I play one on TV. So the following are my observations of the car, plus what I gleaned from conversations.
This morning I took a look at B&SR 67. Zack and Mike were inside it walking around, so the floor is clearly in good shape. I peeked underneath, and the long stringers look fine. The outer stringers (sills) probably will need replacing, as will the end sills. I think the ceiling is tender, but didn't get a close look at it (but I could see plywood here and there). The interior bracing generally looks solid, although it was dark inside so couldn't see much details. Probably most of the outside sheathing will need to be replaced.
Overall, I'd say the car is in better shape than our 309 was when it returned from Connecticut. If memory serves, 309's floor was gone or badly rotted, and the box had fallen around the body. So it needed a lot of bracing to get the box up to stay up. 309 had a metal roof, which I don't think 67 has, so I think most of 309's roof work could be saved. So 67 is probably marginally better than 309 was.