90 degree oil filter adapter gaskets

I want to replace the 90 degree oil filter adapter gaskets before I install this 318 in the Scamp. I am able to find the big one that seals the adapter to the block but I can't find the small cork one that goes around the bolt on the inside of the adapter and then to the block. Doe's anyone have one or can someone send me a link as to where I can order all three gaskets for this adapter set up.
Thank You
bob