Let me be clear then: I HAVE ALREADY exported the keys. No kidding. Thats the only backup I have.
Not sure why you ask a very specific question, and you get tons of people telling you to do something else.
I know. Export the keys. Save the bitcoin in them. I know that.
Lets take a look at why people thought you were not getting started on the most important and simple thing you could do to at least preserve access to your bitcoins, shall we?
The biggest reason I'm asking here instead of just getting right in on exporting the keys is that
listaddressgroupings rpc command will export address list, and you can dump the private key one-by-one with dumpprivkey command.
Right. Understood. But I also very clearly stated in my OP that I'm aware of that, but thats a LOT more work . . .
I'm fully aware I can export all the info.
Exporting it all, . . . is a lot more work than recovering the password if possible.
Because of this, you invited many people who didn't know how to help you with your "very specific question" to at least offer their advice that you should stop putting off this simple step.