Had a plow on my LGT 100 years ago. Can’t really remember what I did. But was all home made. I think there was two point at the front of the tractor where the mule drive bolts to. Took them out and made a bracket to fit there, then slid a rod thru with a pin on one end. Quick attach. Hehe. But it worked well. Used the mower deck lift handle to raise and lower plow.
Had it made so I could manually angle plow too.
Noel