OpenCore flash drive died; how to reproduce?

I'm an idiot: I set up my hackintosh awhile ago and everything's been chugging along well. So well, in fact, that I never got around to copying the flash drive over to the hard drive.

And now the flash drive has died. Completely unreadable on any system. Yeah, I'm an idiot. I knew better; this isn't even my first hackintosh!

Anyway, I'm wondering if there's an easy way to recreate the flash drive without having to reinstall (or otherwise mess with) the main SSD. I have pretty much all of the kexts I used backed up together, and other Mac systems to work off of.

submitted by /u/cjthomp
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