Maybe I missed part of the discussion. What size hoe attachment are you trying to find and what do you want to put it on?
In regard to Deere hoes with the drum/rotary swing? I've yet to come across any for "scrap value" unless they were indeed no better then scrap. At least not around central NY and northern Michigan. I know where there are several off of 1010s, 350s, 450s, etc. $1000 is about the cheapest I've seen for something that has the promise to be usable. Typical Deere hoe weighs 4000 lbs. and in my neck of the woods -that yields around $400 at the scrapyard. The buckets alone if half-way decent often sell for $300-$500.
I've got an AC hoe that came off a Deere 350 dozer sitting here in NY. It's a Mark IV I think with all the brackets to bolt to the rear of a JD. $950.
I also have an odd-ball hoe of unknown make sitting in northern Michigan $500 to whoever wants it. It had been previously mounted on a 900 Ford wheel tractor but certainly did not start life there. It has two single-acting conventional swing-cylinders that attach to a chain on the hoe.
NOT a Ford hoe though. I have no idea what make it is.
Here's a list of some Deere hoes.
OEM 50 goes on 1010 and 2010 crawlers and 1010, 2010, 3010, and 4010 wheel tractors.
OEM 51 sideshift hoe goes on goes on 1010 and 2010 crawlers and 1010, 2010, 3010, and 4010 wheel tractors.
OEM, 92 goes on a 300 or 400 Deere wheel tractor.
Sold around 1969.
OEM, 9250 goes on a 300 or 400 Deere wheel tractor.
OEM, 9250A goes on a 300B, 302A, or 401C wheel tractors.
OEM, 9250B goes only on a 401 Deere wheel tractor.
OEM 93A goes on a 350 or 450 crawler and a 600 wheel tractor.
OEM, 9300 was used on 350,450 and 550 crawlers and has a central barrel cylinder for swing. Not a great setup.
OEM 9300G goes on a 450G, 550G, and 650G crawers.
OEM, 9305 goes only on a 544 Deere wheel loader.
OEM 94 goes on a 400 wheel tractor.
OEM 9400 goes on a 400 wheel tractor.
OEM 95A goes on 350 and 450 crawlers and 400, 500, and 600 wheel tractors.