Leareth studies how to raise a hybrid Gate with the power directly channeled from a generator, without passing through him at all, while he's still doing all of the search and routing and other spell-structure. It's a weird and different way of doing things, but he has some experience with not-entirely-dissimilar work, from the nothlit project, and he figures it out in less than a week. Then they need to pick a destination, close enough to be under a day's journey in hyperspace but far enough that they definitely won't be seen, and he would benefit from some sort of celestial body to help anchor on.
Computer-aided Gate routing and verification isn't complicated, though, and it only takes Leareth a couple of days before he has a route. It also starts from near Saturn, and it gets him there with slightly less complicated routing than the Andalite homeworld one, which is good. He'll have some time on the Pool ship to rest, of course, it's about six hours' travel in hyperspace, plus the approach to the planet itself.
He'd like to bring some Andalites with Gift-morphing and training with mage-combat and the simplest compulsions on the ship; they can morph humans on Mhalir's staff if anyone local wants to enter the ship for some reason, but Mhalir can't think why they would. He'll go down in a shuttle with Leareth-as-Alloran and his lieutenant.
Leareth thinks that they're ready to move. He asks Matirin for the final authorization, though, to alert the Andalite homeworld of their departure and travel time, and then Gate a Pool ship quite a number of light-years. He'll be out of touch for a while.