See omnicalcs Ram Recovery, though if you have an 84+ that is missing the extra ram you are out of luck, for that option. There is also the Archive Undeleter which can be found on ticalc.org if you search for it.

You'd need a lot of memory (hopefully in flash) to store all of that. On the other hand, you can store the following without much empty space:

1. All of RAM (assuming you have one of those old SE calcs with the extra RAM pages)
2. Certificate (since it's not that big (I think; does someone know exactly how large it is?))
3. Any Archive you accidentally deleted (not cleared) since your last Garbage Collect (before that, it's gone )

On the other hand, if you really corrupted your calc, the restore point itself would likely be ruined, so there'd be no point in trying. (Unless, of course, you somehow stored that in a separate driver or something, unaffected by crashes -- don't know how you'd do that, though.)

Anyway, why not just use the built-in computer backup function? I realize it'd be tedious to do a lot of backups, but complete crashes don't happen that often, either...

If you wanted to calc restore, would you lack the space for it because it encompasses so much? (RAM, OS, Archive)

^++
This.

That's a neat idea, only how would you get the data off the flash drive and onto the calc if the calc is "destroyed"?

that would rule ^^