Recently, I sold my K-Line C&O Alleghenny to purchase a RailKing Impearl DM&IR Alleghenny. Not that I didn't like the K-Line...I loved it. Just didn't want two and really like the look of the DM&IR.
The K-Line is well proportioned throughout. Has an awesome whistle too. It looks great with Traditional sized rolling stock, but I ran it with scale cars as well. The k-Line Alleghenny is 1/55 scale. Still a big locomotive. It came with and without TMCCC, with and without cruise. Mine was a TMCC a version without cruise that I only ran in conventional.
Here is an old video of mine running in conventional, pulling scale tank cars and scale PS-1 boxcars...
In the photo below, to the left of the Alleghenny is an Atlas scale 55 ton hopper...
