Google/Youtube is Your friend
yea pbusardo has great videos.
i had the igo l for a while,
i sugest 32 gauge kanthol with regular 2mm silica wick.
right now im vaping my trident with a 30 gauge kanthol and 2mm silica dual coil build.
rba building is great! just make sure you do it right the first time or you will get a bad first impression of a great setup.
MAKE SURE YOU CHECK THE OHMS, sub ohm vaping can be dangerous, i usually keep it above 0.5 ohms wich is still not too safe.
Hope this helps!!