Personally, I'd save them, although I would also save the de-rusting for later... when you are sure to need some, and not much more than you need at that time.
This way, you don't spend time and money on cleaning nails you may never use, or may rust again before then!
Anne's suggestion of selling the "surplus to your needs" portion, might be a good way to lighten your load. Those funds could pay for
project materials that you need to go with all the hardware that you have...
p.s. I'm sending a PM since I'm sorta kinda nearby in Boston.