Coincidentally, I broke the handrails on an Atlas B23-7 last year. I ended up just replacing the entire shell when I found a replacement B30-7 shell online that was reasonably priced. Allowed me to upgrade the mechanism to a B30-7 in SBD paint as opposed to the SCL (Family Lines) paint that was on the B23-7. Of course, I had to buy trucks and a fuel tank from Atlas , but it was still far cheaper than buying a whole new locomotive.
DFF
Lets hope it isn't a production issue. I have 18 B23-7s.
I really like my CN SD40-2W. It looks good and runs well. The wheels are slabs, but that's what happens when you rely on someone else's mechanics (Atlas).
Where on earth are the pre-production photos?