Alrighty then. Well, if you cannot find "ideal", then maybe something close will work. Nothing says that the spindle has to be symmetrical, lots and lots of bikes run asymmetrical spindles. You just need 32mm on the drive side to get correct chainline, correct? If that's the case, according to Sheldon Brown, a 5N spindle would have 32-55-35 measurements Sheldon Brown's Bottom Bracket Size Database. You could put the shorter end on the drive side. Good luck.