Dear D.H. I own and opperate a Hopper Hoe. I was helpfull in thier design "back in the day". (It never took off by the way.) Designed as as towable trencher, The first modles were "seated". A five lever operation system was hydro. with a LoveJoy coupling to the pump. Normal operation was by a Michigan single cylinder motor. Parts are still available for ALL models! They were built in Bakersfield California. What EVER you do, DO NOT throw it away.
I will try to post a Vid on YouTube if you wish. Beau... (
beau_miller@ymail.com)