Micronauts Chronology Conundrum

Anticipating receiving the copy of the Micronauts: The Original Marvel Years Omnibus Vol. 2 I preordered soon, I finally got back around to revisiting the contents of the first Micronauts omnibus--stories I haven't re-read in twenty years or more.

I noticed something in those first few issues that I either didn't notice before or had forgotten:  the timeline of Baron Karza's rise to power is confusing.

Micronauts #1 (January 1979) by Mantlo and Golden and Rubenstein, opens with the scions of Homeworld's royal family, Prince Argon and Princess Mari being pursued and captured by the forces of the despotic Baron Karza. We are told that the king and queen have been killed, but given their kids are still on the run, every suggestion is that this is a recent event. Karza's coup/revolt appears to be a relatively new thing, though certainly it has been going on long enough he has significant forces at his command and alien allies (the Acroyear) from elsewhere in the Microverse.

Next, we see Arcturus Rann return to Homeworld has his 1000 years long voyage of exploration--and quickly get captured himself. We soon find out that after Rann left on his trip, warp drive was discovered, and the species of the Microverse were connect while he was in flight. "Within six months" of the advent of warp drive (whenever that was) the Microverse was at war thanks to Karza. Rann has heard of Karza. He was his tutor 1000 years ago! 

While the information here is unclear, it would suggest at least that Karza's revolt isn't brand new. Perhaps it was centuries after Rann left that warp drive was invented, but whenever it was Karza was in position to launch a war of conquest against other worlds.

Finally, the protagonists of our series are all united in the arena, where Karza and his ally, the Acroyear ruler Shaitan are going to watch their struggles from a position of honor.  Shaitan says to Karza:

"It's been almost 24 xats since your insurrection, Karza, and still you enjoy the unswerving loyalty of the rabble!"

We're given no idea how long a xat is, but clearly 24 of them is sufficient time that Shaitan seems surprised the people still support Karza, so I don't think "hours" or "days' would be a good translation.

We also find out Dallah and Sepsis who we've heard people swear by before were Rann's parents. They were deified by the resistance after they were martyred for defying Karza "almost 1000 years ago."

Where does all this leave us?

1. Almost 1000 years ago, Karza killed the rulers (presumably) of Homeworld Dallah and Sepsis in the Body Banks.
2. Either that or some other event marks the beginning of his insurrection "24 xats" before the present.
3. In the present, he has only recently killed the King and Queen of Homeworld (who aren't Dallah and Sepsis), and only at the start of this story manages to capture their children and their entourage.

We're given contradictory clues that Karza somehow both began his coup a long time ago, yet only recently completely it, and we have two royal families with an unclear relationship.

Perhaps there is further information in later stories that would clear this up. Certainly, I can think of a backstory that would make sense of it all, but I do wonder what Mantlo intended?