Case 580B CK engine to offer

I have a old spare Case 580B CK engine in parts to sell but don't know where a good place to offer it up. View attachment 163490

The engine was rebuilt but never re-assembled. I got it for parts for my 580B CK but I sold the tractor and the engine was not wanted by the buyer so I has set in my garage gathering dust/rust. Needs a good home. Anyone have any ideas where to sell this? I don't want to sell on eBay if I don't have to.

Case 580B CK engine to offer