How is Jack in a damned if he does, damned if he doesn't situation? All he has to do is to do what he is supposed to do and do what he was paid to do: build the games and ship them on schedule. Period. If he does that, we're happy crickets out here.
If he had done FIFO, and built the 1000 games that were paid for first, we'd be happy crickets out here. When's the last time you heard anyone whining about not getting a regular WOZ? (Never). It's only the good customers who trusted him and financed his business that are whining. In actuality, he used money from prepaid WOZECLE's to build regular WOZ's to sell.
BTW, as a reference point, it took 400 days to take the Empire State building from an empty lot to 102 stories and open for business. In 1930.