Are you looking for the part that the 2 hoses for oil hook up to & filter spins on?
The Sandwich as I call it.
I might have a 3rd one I could sell as I need the spare for another project. I guess about $70 shipped. Maybe someone in the US has one as I am in Toronto in the Great White North
If you have not found one yet, I'm in the US and have one for sale. Adapter that the hoses go to and the bolt the oil filter will screw to after that. Both in very good condition.