Wukong is most definitely able to jungle. Along with fighting, Carrying, and smashing down the whole enemy team within seconds. Along with his awesome armor passive and with this build Its amazing. Wukong is known for going against multiple opponent's at once and that is why he is Crowned the Monkey King.
I hope you enjoy my build.
Jungling/ Why the items and runes work.
Now for Wukong, You want to go with Machete and 5 potions and head off to blue. It is always good to get a bit of help with it, But after that leash you will sustain Absolutely Awesome. With the cooldown runes you shall be able to cast spells and spells. With the Greater Mark of Alacrity runes you shall sustain damage and speed during the jungle. Armor is recommended and just the basic runes for Wukong's seals. After you smite blue you can go to wolves and go straight to your red or another option is to save your smite and go steal their red when their jungler comes for it. Wukong shall sustain quite well. Wukong can sustain a lot of damage since his W works on wolves now. Spirit Stone is a really good item for Wukong since it can build into Ancient Golem. Early ganking pre6 isn't that strong and you still want to show presence but until you reach 6 all you are going to be able to do is scare them, try to burn their flashes and deal damage since Wukong has no crowd control.
So yes you want to rush for Spirit of the Ancient Golem and Mobility Boots since Mobility Boots will allow you to smoothly get into a gank.
Greater Marks of Attack Speed or Greater Marks of Penetration for easy jungling. (Plus it doesn't hurt a build)
Greater Seal of Resilience because its just basic plus it works with wukongs passive and Wit's End adds magic resistance.
You can have either Magic Resist Scaling Glyphs, or Flat Cooldown Reduction Glyphs depending on if you want to cast your ult more since it is your main crowd control.
3 Greater Quintessence of Desolation's will add 10 Armor penetration therefore adding damage for Wukong or go with Quintessences of Lifesteal to help you sustain in the jungle til 6 as you want to get to 6 as soon as possible.
Yes the runes do seem a bit unoriginal but it helps with overall sustainability.
21-9 Offense defense.
Taking 21 in offense and 9 in defense is going to help you deal massive amounts of damage early. Junglers nowadays are running more offensive mastery pages due to the new jungle items. You can scale better now as a jungler and 21-9 seems to be the best for most junglers. Though its always good to build one or two tanky items.
9-21 It is a really tanky mastery choice. It used to be one of the most popular mastery choices but due to the changes with the items this has really fallen off with most junglers. 9-21 Is only an option if they change the current jungle. I still prefer 21-9.
Wukong is most definitely a DPS/Carry/Fighter. Therefore after getting your Spirit of the Ancient Golem and Mobility Boots, start heading into Black Cleaver. Trinity Force or Iceborn Gauntlet is also really good Items on Wukong. You can also head for Sunfire Cape and/or Randuins Omen afterwards. You can also head for Ravenous Hydra. Ravenous Hydra also clears waves fast so Wukong can get back to helping his teammates.
The reason you want to max out Crushing Blow is because you want to do lots of damage on the ganks early and it will still help you clear the jungle pretty well.
Nimbus Strike is maxed second for obvious reasons so you can get attackspeed and reduce the cooldowns on it so you can initiate more often.
Grabbing your Decoy at level 4 will help you get into a gank for your team.
Once you are level 6 you should be able to gank with Wukong's ultimate with no problems.
But continuing to max out your Nimbus Strike and Crushing Blow shall give you massive damage. Decoy should be maxed last since it is mainly used for getting out of tight spots and really isn't your main AD Damage Source.
Smite: will allow you to grab more gold for you and it will help you a lot to grab your blue along with someone leashing for you.
Ghost: will allow you to pull off fast ganks and sustain your movement speed, It also gets you out of tight spots.
So to sum this up, This guide will help your overall sustainability. The items you get will increase your durability and damage per hit. Once you get your last items (Infinity Edge and Blood Thirster.) You should have damage that will smash your enemy team to shreds.
Enjoy my Experienced build.