Turning down stroker crank

Apparently I have a RB stroker crank that cant be sold because of the fact it is a Chinese unit finished here in in Texas. I has handled over 650HP with no issue so I am wondering if anyone has cut a 4.15 aftermarket crank down to go in a B block and cut the rods down to BBC. I would get it re nitride.
Is this a cost effective option?
Will the main issue be the rod width difference?

Turning down the counterweights and grinding the mains so you can use it in a B block might be cost effective. Offset grinding the rod journals is probably not a good idea.

New cranks are fairly inexpensive these days so if you need a different crankshaft just buy a new one. Molnar has fair priced Mopar cranks, SCAT is another vendor with a good selection of cranks.