I really like MOW equipment and it’s something you don’t see on most layouts. My MOW equipment consists of 3 Athearn wreck cranes, a Athearn kitchen/sleeper car, 8 ballast hoppers, 3 heavily used gondolas, 2 boxcars I’ve converted, 4 snowplows, 2 cabooses and a water car. There is still a few items I plan on getting sometime. When I clean my track I make a work train out of it using my Clean Machine.
I have two sets of MOW Cars. In N scale I model SP mainly and have a Tichy set that I built, along with a Water Tanker and some MOW cranes.
In HO I model various Railroads and have a Amtrak MOW set up with a couple of Gons, a couple of Ballast Hoppers, a Flatcar, and a Amtrak Express Car.