I plow some private roads with a 10' Fisher min mount on an F 650. I have done 20 MPH down some of the roads, and the min mount hasn't been a problem. I am having a hard time understanding what was gained by welding the headgear on. Anyways tell him to look at the Diamond Pull away system,
http://www.diamondplow.com. The pull alway system works like this, the frame kit, is where the plow connects too, the head gear is removable from the frame kit. It is a two peice system, so it takes more steps to totaly remove the headgear and blade. However the actually plow pins connect right into the frame kit, and not into a another component before attaching the the frame kit.
Geoff