I want to see some new C&O steam.  A K-3 Mikado or F-19 Pacific would be sweet.

I don't understand why they don't have these already to be honest.  Visually, these locomotives are nearly identical to the J-2 Mountain that Spectrum already produces in C&O.  If they were to manufacture a USRA Mikado or Pacific they could do the same thing they did with the Mountain: give a C&O scheme with a Vandy tender and the "flying pumps."  I own one of those C&O Mountains and it is a beautiful engine!