Heartsteel
Heartsteel is great against squishies, especially ones that dont have much %HP damage. Not only that, but you get free stacks off his clone if you time it right!
Iceborn Gauntlet
Iceborn or Dead Man's is probably fine against Wukong, but I think you're honestly better off just going Warmog's or Riftmaker after Heartsteel, unless those items are really good holistically in the game.
Bami's Cinder
A Bami's item is probably fine if you're ahead and wanna split push. I think Wukong will have trouble with you throughout the game, so it can be annoying for him if he can't participate in teamfights.