Congrats on getting off the cigs and welcome to the forum.
The Kanger Protank 2 uses the same
coils as the T3s, the BCC or single bottom coil. (The version 3 use dual
coils). The Protanks are made of stainless steel and pyrex. Learn to rebuild starting with single coils. Get an ohm/voltage meter. The ones sold in the vape shops with the screw on 510/eGo connectors are the best for doing coils. A multimeter is fine if you already have one and a familiar with their use. DON'T build coils without something to test them on. Unless you want to change the resistance of your coils, all you really need to do is re-wick them. Lots of videos, YouTube is your friend.