One of the things that may be holding up construction of additional rolling stock is the question of trucks. Sure, we could use arch bar trucks under passenger cars, but that's not authentic. We have a pair of Jackson & Sharpe trucks awaiting overhaul before they can be used. If used under coach 8, that would free up a pair of arch bar trucks for a new freight car, but then we have to decide whether it would be a flat car for the B&SR tank, a straight flat car or a box car. Decisions, decisions.
At some point, perhaps we should consider building reproduction Jackson & Sharpe trucks. There are a number of coaches at Phillips, Portland and Boothbay that could use that type of truck, which rides better and is much more authentic than arch bar freight cars trucks. If we built several pairs at once, the unit cost would go down. In fact, we could put a pair under our caboose, thus providing another pair of arch bar trucks for yet another freight car. Turner Dairy reefer, anyone?