I think you're missing the point. All rba's copy the first iteration of it's variation with slight differences to try and set them apart. Clones are generally 1:1 copies.
I don't understand. That's exactly what I said.
All present day computers copy the first iteration of a PC with slight differences. For that matter, all graphic user interfaces have been derived from the same initial iteration of one, I believe, invented by Xerox.
But that is besides the point. With that logic, everything is a clone of everything...
My point was, as you reiterated, that I do not believe the OP is looking for a genesis that is a 1:1 clone of something, such as the kraken clone.