Wow, that's a lot of material. There's the core rules, the Rulebooks, the Bestiaries, and the Player Companions (you said you didn't want the Campaign Settings, and I'm assuming you don't want the Adventure Paths, the Modules, or the third-party material).
Hero Lab with the Pathfinder Core Rules is on sale until Dec 5.
None of the Rulebooks are in a bundle (though some are on sale until Dec 5). The Advanced Player’s Guide, Ultimate Combat, Ultimate Magic, Advanced Class Guide, Occult Adventures, and Ultimate Intrigue are the ones that have new classes. Advanced Race Guide, Horror Adventures, Inner Sea Gods, Inner Sea Races, Mythic Adventures, Pathfinder Unchained, Ultimate Campaign, and Ultimate Equipment are the other Rulebooks.
The Creature Collection with all five Bestiaries and the Monster Codex are on sale as a bundle until Dec 5.
The Player Companion Mega Bundle with all the Player Companion books is on sale until Dec 5.
I think that covers it; hopefully someone official will come along and correct me if not.
EDIT: BTW, with the current sale prices that would run a little under $255, or $305 if you decided you wanted the Campaign Settings after all.