Hey Trevor,
Did you buy that quick coupler from a guy in Canada who owned a paving co. and made them on the side?
The reason I ask is that back in '05, I went to Michigan to buy some equipment and made a side trip to Windsor, where I bought a Canadian equip trader. There was an ad in it for those, and I called him and bought one. I lucked up and he was going to Florida to visit relatives and dropped it off for me.
My coupler looks exactly like that one, right down to the reflective tape on the sides and the washers welded on the heads of the pins.