The hunter Vendors have twins now that sell the suppression stones for Uillip and Overseers. As well as the saddles for Bufo, Kasha, and Dharkhu. They sell the saddles at roughly the same donation amount as Panther Saddles. -Hunter Vendors have been updated to sell items required to Revive Uillip and Overseers. (Tetrachromat Beads, Shade Essence, Crystalline Eye Beam, Smoldering Core)
The vendors also share Development status with the current Hunter Vendors. So if you donate to either one they both will receive the development towards purchases. (The new vendors do not purchase any items, they do sell some of the same stuff as the originals, extra feed and the such)
The new vendors look like the current hunter vendors and are very close to their originals so they are easy to find.