Mini Excavator Coupler Mount

[JD 4520]

I own a CAT 303.5 and purchased a Flail Mower. The mower came with a mounting coupler that wasn’t sized for my machine- see photo of coupler and specs. I purchased a new coupler to fit my machine from CAT and made a simple modification for bolt pattern. I would like to have someone benefit from owning a mounting coupler that doesn’t fit my machine and does fit their machine.

How do I sell or find someone that could use this coupler as they aren’t cheap? Again, see attached photos to follow what I am talking about.

Happy New Year!