This design is based on a CB&Q plow that is/was located at the Colorado Railroad Museum. The kit (shown unassembled) is designed to mount to an atlas flat. The plow can pivot until you are satisfied with its height off the rails to clear frogs and guardrails, etc.
Here is a picture of the car it is based on:
The kit can be purchased here:
http://www.keystonedetails.com/keystone-customs/2017/4/28/n-scale-cbq-push-plow-kit
