Please check my former post btw.
1. Nowhere in Anderson's stories. However, yes, any author can use another's creations. Hambly and Anderson do such plenty...Allston and Stackpole do it plenty.
2. Yes, that it is Ragnos's throne and armor and that he would have been on Korriban at the time-didn't he get drawn off by Tavion's cult?
3. Yeah, the whole Republic bit. Ragnos himself told them during their duel that who became Dark Lord would determine the fate of the Empire, though.
4. The Force isn't a pendulum. didn't the AOTC novelization say that it was the Sith Lord who was doing so? And on the DVD commentaries, didn't Lucas say that the balance was restored with Palpatine's death?- It's been ages since I've seen them, so I confess I could be really off there. However, even without the EU, it makes perfect sense that Sidious, the Sith Master and at the time lord of the dark side would have something to do with the unbalancing, as the Skywalker Twins, the last great hopes would have to do with it swinging back.
5. Sadow himself never gave any true indication of power, I'd place Kun on a higher tier than him. Sadow was a brilliant alchemist and scientist, but he's reasonably competent in a realm of complete dolts. I maintain fully that it was Sadow's ship that was the catalyst, even if Sadow activated it. . We see the electricity hitting the star that claims Gav, even when Sadow is nowhere near the control panel. We hear him say it's the power of the ship and Aleema and Kun also support that idea.
6. Kun didn't mean to just 'preserve' his spirit, that was a massive error. He wanted to attain true, ultimate power without fleshly bonds...the Jedi locked him in Yavin. Though, he had the power from the Massassi and whatever else he drained. Existing in a nest of darkside energy will do loads for you.