A real Street Hemi converter behind a stock Hemi will stall between 2800 and 3000 depending on tune.
Yep
Loaded question: If someone wanted that today, what would be the best source?
.....Or would it be a fruitless search, and more a matter of finding a modern converter with fairly similar driving characteristics, but not necessarily the same construction as OE (such as maybe a tight 10" or similar).