The Canada Atlantic's trucks were for the most part swing motion. Even the cars made by Pullman came with a swing motion truck. As far as I know the only ones with a standard archbar were the 6000 box cars.
Here I've assembled the main parts of the bolsters. There is another layer representing the swinging, spring plank to go, and that will get the round holes. On the locomotive, I bodged together brakes that hung below, and never worked satisfactorily. This time, I'm going to hook them onto the bolster above the wheels. We'll see how that works.
Looks like it's time to fire up the casting process to make all those journals. Perhaps this time, I'll cast the brake shoes as well. They were a nuisance to make last time.