Does the plow "float" on the loader bucket pivots? If so, that look like an interesting way to do it - Blade cut angle adjustable by lifting or lowering the loader arms.
Actually the plow (7'6") is off from a pick-up truck. I made a angle iron mount to adapt to my loader arms. The plow simply "plugs" into a couple of slots in the angle iron. Pins keep it there."
I first wondered how you'd pick it up off the ground, then I saw (I think) the chain in the middle that'd keep the top of the blade from from flopping forward.
The chain hooks to the plow just ahead of the pivot, then back to the cross brace on my loader arms. I welded a chain slot to the loader arm brace. That allows for easy chain adjustment. When combined with the loader arm movement, the cutting angle is infinitely adjustable.
I have quick connects on my tilt lines at the loader valve.
When the plow is on, I use the tilt lever to angle the plow.
Sweet
Milo
I've got a mental concept of a steel frame that'd mount to the loader arms just like the bucket (B219 loader), keeping the bucket tilt cylinders attached to enable adjustment of cutting blade attack angle. Ears on the back of the plow blade to attach to ears on the corners of the frame with vertical pins and optional links that could be moved from one side to the other (or left off for no angle). I haven't measured out and sketched whether I could make it so the same frame could also mountable to the 3pt for pushing in reverse. Of course (in an ideal world) the frame would also take pallet forks, ripper teeth, be a 3pt quick hitch (on the front or rear!), Reese reciever, weight rack... what else have't I thought of??