Pics of my sleeve hitch
 

Here's a pic of my sleeve hitch all done and attached. Works good! Glad I have a spring assist! I put a 100 lb suitcase weight on it, ground was to hard and sticky yet. Broke the garden with my old wizard tiller the other day. Now let it dry and try out the disk again!

Another picture

Looks good. More pics please especially the disc

Looks solid, but isn't your turning radius obstructed a bit by the squared corners? Looks like your implement would hit the right angle of your sleeve hitch....maybe not. It does look very sturdy.

Cub Cadet 123

Here's a pic of the disk it's a brinly. As for the turning radius, I raise and lower it when I get to the end like you would a plow or cultivator. It does get kinda heavy, I did have a 100lb suitcase weight wired on top!

Another picture