Block Hardware Package / Question

I know this thread is old but thought I would answer the OP question for the rest of you and ask a question of my own.

"Oil filter plate and gasket will not fit small blocks 273/318/340/360 '65-'92 because the parts in kit are different and fit the newer Magnum blocks. (the other parts fit both generations)

And my question: The kit P5249261AB is a discontinued part, so does anyone have a replacement source for a similar kit or maybe for the individual pieces? Thank you.