I'm going to move this into Brian's section, because he is much more qualified to help with this.
I wanted to ask, though, have you formatted the flash drive?
You should certainly back up the profile, yes, because it might be better than nothing.
But you will need to borrow the calibrator again once your new card is up and running.
That's excellent. Really good quality.
Have no fear, my friend. The print will look excellent.
Make sure you send a PDF file to the printer, not a jpeg. http://www.damiensymonds.net/2010/05/making-pdfs-from-photoshop.html