If you absolutely need a good crankshaft now, there is most likely one available from other sources, such as Ohio Crankshaft, Sonny Bryant, Moldex, Crower, etc. But they will be very expensive.
Moldex Will build you anything you want.
Years back I sent them a crank from a Mercedes that I wanted to stroke. Using my old crank for dimensions, they did that for me in less than 90 days.
Just call those companies yourself!
Also, check up on the Summit Racing Equipment site.
Good Luck,
Bruce