CG outdid themselves this conquest

Most other feats seems doable tbh

Doable isn't the question. The question is: will this be fun?

The purpose of a game is to have fun. CG is resolutely opposed to allowing Conquest to be fun.

UFUs will allow you to progress through territory while working on the feat because you'll have 4 toons with synergy (3xRey + Ben Solo + 1). NS will not. Tuskens absolutely will -- they're a great team -- if you've got 5 relic'd tuskens. But since one of the Tuskens isn't even farmable yet, that's a hard no for most people. The Cal/Cere kills are going to be stupidly grindy. At 100 enemies, that's well over 20 battles unless you have them both at relics. They're even preventing you from using Rey with them (Rey + HY + bb8 + Cere & Cal would allow you to focus on keeping C&C alive without attacking the enemy) through the UFU feat. 20 battles with C&C present would be a mild pain. This will be much worse. And they won't even be farmable before the start of the 3rd conquest in this cycle.

It's a rat's nest of drudgery.