years ago I build a 3pt hitch attachment on my snap couple hitch for my D14 AC.
it worked fine for my bush hog, lift boom pole, any non ground engaging tools.
but you must remember for the depth control to work properly, the pressure must be placed on the snap couple hitch hook under the tractor.
I had a full set of snap couple equipment, plows, disk, rear cultivators all hooked using the snap couple system.
you use the lever on the left top traction booster, to set the pressure, if ground was hard you could hear in the belly of the tractor a clicking noise and the plow would be raise up some till you got through the hard spot.
it worked just as any depth control of a 3 pt system on other tractors, but that snap couple hitch hook had to be free to move as it carried the pressure of the pull weight.