How Many N64 Cart PCBs are there?

Had a customer a few weeks ago ask about having a N64 game PCB repaired (snapped off the card edge)..

That got me thinking, how many revisions of the PCB where spun?

Would it be worthwhile, either making a universal PCB (don't see how though) or creating 1:1 copies so the gerbers are available?
I've recently started learning about PCB manufacture and am teaching myself about KiKad.
The PCB seems simple enough to copy, two layers, non internal and minimal vias..

But anyway back on topic, how many revisions are there?