Wanted - Jern Thunderbolt or Hansen French adapter plate

I am looking for a either a Jern Thunderbolt or Hansen French adapter plate or complete kit to mount a 1028 Chevrolet head onto a Model T engine block. I have checked with about all the sources that have been suggested to me but have not been able to locate one. I appreciate any help.

My dad built a T engine with a ‘28 Chevrolet head. He copied an adapter plate that someone else had. You may have to do the same.