If you decide to make them, you can also take some steel tubing (Lowes), and file them to whatever shape you want & then silver solder a lug on the bottom of them. This gives you a thicker pipe to work with & looks more like a cast one. I didn't see any handmade pipes at CLA, but there is always something I missed. Dave Keck always has some nice looking long RR pipes, like a cast Bivins Lancaster pipe but longer.
This is a set I made for some tubing for a York rifle i built. Somewhere I have 3 more photos of making it but cannot locate them on this laptop. This was my first attempt at making them out of tubing, I felt they and they looked pretty good so I used them. Next time I will detail them a lil more & make them exactly like the originals. These are similar to a York rifle in the RCA book. All I could find in a York RR pipe were those thin metal stamped out pipes & I won't use those.
All three pipes are the same, except the entrypipe has a straight 3/8" extension out to the right. I took the tubing & cut a piece about 2.5" long, split it, put it on a mandrel I made & spread the tubing out, put that over the pipe extension, soldered it on, filed it down.End result is the pipe looks 1 piece but was made with 2 pieces.
Keith Lisle