Ryan,
thanks for the interest. I was still hoping to find the Cylinder slope, so I put the Locomotive Frames aside. I am moving right along on the Tender.
From the meager drawings I have and my layout drawing, the angle appears to be 3 degrees – but that is just by looking at photos and You Tube.
Here in the States one can purchase ground, ANNEALED flat & bar stock from McMaster Carr (this industrial supply company has the best website I have ever come across – and their sales agents are very knowledgeable). This stuff is great to make the Frames and Coupling Rods as it does not distort. The coupling Rods for my 7-1/2″ gauge locomotive made from this material did bend slightly (.025″ bow over ~10″0.); however, I surely machined over half the weight of the material away.
Bruce