Level 67 Kinetic Bolt Elementalist^3.28

Notes

Follow the endgame pob once you finish the Campaign:

Ranger Mule:
This is very important for witch lvling, but it's also very simple. You'll make a 2nd character, a ranger. Go and kill hillock and place all of your gear/gems in your stash tab.
After that you can logout and delete the character. You do this because ranger gets momentum at lvl 1 and witch doesn't, which is very important for shield charge.
You'll also get spare wisdom scrolls, which allows you to buy an extra iron ring at lvl 1, which is really good damage for KB, rustic sash is also good to buy.
You'll vendor all the items/gear from the ranger mule besides the momentum gem.

Gear:
Before swapping to winter orb, you'll want to focus on spell damage and flat damage to attacks on gear. Just looking for the highest DPS wand you can find, iron rings in act 1 with a rustic sash is pretty huge.
For regular gear, just life/resist, and make sure to have movement speed boots.
Once you swap to Worb at around lvl 31-34, you need to focus on spell damage/cold damage to spells on your wand, also have a decent chance of finding a +1 wand and shield.
Either craft cast speed or cold damage to spells on your wand, depending on what it's missing.

Regex for vendor: Paste this into the town vendors. It'll show 3 links, 4 links, movement speed boots and +1 wands/shields
"-\w-.-|(-\w){4}|(-\w){5}|-\w-|Runn|rint|singe|^voll|oly f|ombu|ld ch|ter at|cis|bots$"

---Ideal weapons for kinetic bolt
Generally in act 1, use whatever wand you find, can just check tooltip to quickly compare.
at lvl 12, you unlock the kinetic wand and this is a great base to use essence on, as it'll only roll attack mods, which is what you want on kinetic bolt. If you can, you should craft spell damge.

---Ideal weapons for Winter orb
Pretty much any base works, just avoid lightning or fire damage implicits, as they wont work with the new keystone(biter frost). 
Pegan wand is a good base, any spell damage implicit or cold damage to spells. What matters more is the rolls on the wand.
+1 to cold is the most ideal roll to get, besides that spell damage/inc cold damage/cold damage to spells and cast speed. You can craft any of these modifiers from the crafting bench, besides +1 cold.

LVL 1-12 - Act 1
(Do the ranger mule at the start, buy 1 iron ring and 1 rustic sash)
-Buy Volley(lvl 4) - Shield charge(lvl 4) - Holy flame totem(lvl 4) - Combustion(lvl 8) - Precision(lvl 8) - Faster attacks(lvl 8) /// Do note, precision can be skipped if you lack transmutes.
Added lightning damage(lvl 8), frost blink(lvl 4), flame wall(lvl 4) and Kinetic bolt(lvl2) are from quest rewards, so you don't need to buy them.

Kinetic bolt - Volley - Added lightning damage (if you can, a blue socket for kinetic bolt is also a big damage increase, 10% quality is really strong here).
Holy flame totem - Combustion (added fire is also good, if you're lucky and get another 3 link).
Shield charge - Faster attacks - Momentum (drop momentum if you don't have a 2nd 3 link) - Keep shield charge at a low lvl, you won't have the strength to lvl it up
Frostblink - Arcane surge
Flame wall
Precision

-----Make sure to do the strongbox in the upper prison (1 area before brutus) to get your 2nd quicksilver-----
-----Help Alira in Act 2----- Alira makes gearing easier with 15% all res, you can eventually swap this out later for +1 skill point.

 lvl 12-30 - Act 2 and act 3
-Buy skitterbots(lvl 16) in act 2 - If you get a 4 link in act 3, you can also buy Sacred wisp(lvl 16)
You'll acquire Herald of ice(16) from a quest reward

Kinetic bolt - Volley - trinity - Sacred wisp
Holy flame totem - Combustion - Conc effect or added fire damage
Shield charge - Faster attacks - Momentum (drop momentum if you don't have a 2nd 3 link)
Frostblink - Arcane surge
Flame wall
Precision
Skitterbots - Herald of ice (replace Skitterbots with Haste in act 3 at lvl 24)

---lvl 31+ - Final Setup (Winter orb swap)

Winter orb - Multiple orjectiles - Focused Channeling - Hypothermia OR inspiration(helps with mana).
Shield Charge - Momentum - Faster attacks
Frostblink - Arcane surge - Frost bomb
Herald of Ice - Ice bite
Haste
Frostbite
Flame golem - Ice golem - Stone golem - Lightning golem (you unlock these in act 4, and can't use all 4 of them until you do your first lab, which you should do at lvl 34/start of act 4).

Norma Lab Locations:
The Lower Prison (act 1)
The Crypt Level 1 (act 2) - Reminder, golden hand quest after this lab for +1 skill point.
The Chamber of Sins Level 2 (act 2)
The Crematorium (act 3)
The Catacombs (act 3)
The Imperial Gardens (act 3)

Curel Lab Locations:
The Prison (Act 6)
The Crypt (Act 7)
The Chamber of Sins Level 2 (Act 7)	

Merc lab Locations:
The Bath House (act 8)
The Tunnel (act 9)
The Ossuary (act 10)