Seth, thank you very much!! The Chessies are new to me this year. I grew up along the B&O's Pittsburgh & Western mainline watching lots of freight pulled by solid blue F-units. I was a junior in high school when the Chessie System was formed and then started seeing Chessie engines and caboose with B&O, C&O, and WM in small letters. I became enamored with the Western Maryland when I read a couple books and went to the Western Maryland Scenic Railroad. So most of what I have is Western Maryland, but I had an MTH set of F3s painted in B&O solid blue. The guy did a better job than I could have, but not a great job. This past winter, I purchased a Legacy Chessie (B&O) SD40. Then in a couple weeks time, I purchased a Chessie (B&O) bay window caboose and a Chessie (WM) extended vision caboose. The trio is the most modern prototype I have.
My sidings used 042 track I had on hand. My mainline is all 054. I have not tried the SD40 on the 042 yet. So, technically you may still be the only one. 
I'm glad you like following along.
