Gasket kit for 90degree oil filter adapter

Happy holidays!
I need to purchase a small block oil filter adapter. There are several for sale here in the classifieds but none come with the gasket.

I looked on Ebay and found someone selling a gasket kit for $40. (I don't really want to pay $40 for a rubber gasket)
Have any of you found a reasonably priced gasket that works for mounting the adapter?

Thanks!!!!