Blueprint Engines Crate Motor?
Don't have specific knowledge on them, but just as an FYI.
I ordered a 325 hp Vortec motor for a friend from ATK engines in Texas, but before I did it a lot of research was done.
I found that almost every retailer around here offering crate motors uses them.
Napa also recommended them. (but quoted 400 over a direct order from them)
It was 2,731 with free shipping to my door and zero tax.
Same as you are seeing, there were a lot of mixed reviews on their motors also but we got one and I put it in.
Has good oil pressure hot and cold both, runs great and no leaks or issues at all.