With the 3rd series of Treehouse of Horrors coming out soon, if you missed the first 2 sets from 2019/2020, this is a good way to get most of them. 
* Denotes box damage. Plz check photos. 
Pick up both sets and receive Kang and Kodos* for free
 
Set 1 - $160, 7 Pops
FlyBoy Bart*, King Hong Homer*, Puma Marge*, Demon Lisa, Alien Maggie, Vampire Mr Burns Con EB Shared Exclusive and Evil Groundskeeper Willie Con Hot Topic Shared Exclusive
 
Set 2 - $175, 9 Pops
Bart w/ Chestburster Maggie, Devil Flanders, Grim Reaper Homer, Jack in the Box Homer, Witch Marge, Vampire Krusty, Zombie Bart, Raven Bart SE Sticker, Werewolf Bart EB Shared Exclusive
 
Prices for sets are firm. Not looking to break up. Buy both sets for $335 and receive Kang and Kodos* for free (Box is rough see pics)