Piracy: ꜱᴀɪʟ ᴛʜᴇ ʜɪɢʜ ꜱᴇᴀꜱ

Ahoy, all! I am rehabbing an old MacBook Pro, running Mojave, which I keep local LAN only (MAC filtering at router) so I can share files and print from it but it never communicates with the wider net. This makes it perfect to use for the older versions of apps like Adobe Creative Suite 5 and MSOffice that I far prefer over newer versions, and I already have those working fine.

My sole problem is Adobe Acrobat 9 Pro for Mac, which requires a key, ANY locally valid key, to get past the initial setup, and I don't have mine anymore.

Problem is, nobody has any. I can find entire lists of keys for the Windows version of Acrobat Pro 9, no exaggeration, but for Mac? Crickets.

I've looked high and low, and nothing. I even looked at maybe a cracked install of only Acrobat Pro, but all the vetted cracked versions of Acrobat Pro on the seas are much newer, which I'm pretty certain I cannot run in tandem on the same box with Adobe CS 5.

I even tried the AMT folder thing, where you can at least get a trial code from your own install that you then increment up as needed to extend the trial indefinitely, but that is for Acrobat X and up: this folder literally does not exist on this machine, though it does for later versions on both Windows and Mac.

I mean, a key, that's it. That's all I need. One key that was valid at some point in the last fifteen years, doesn't even have to be good anymore.

Any ideas or suggestions as to where to look? Thanks in advance for all assistance.