Like Kris said, that Boss longblock used to be reasonably priced. Not anymore.
I got my price quote in April, but was told the longblocks were back ordered until June.
Anyway, I saw on Ford's site where they now sell a 9.5 to c.r. crate 5.0 Coyote with Forged pistons and h-beam rods. Designed for boost in mind.($ 8,099)....it's a real crate engine, not a paper engine. Not NHRA legal tho.
It's $1,100 more than the reg. GT Coyote crate engine.