I learned to wrap coils on youtube. Sub-ohm vaping can be dangerous so i'd recommend getting an ohm reader, 26-28 ga kanthal wire, a good battery (i'm sure there is better than my sonys now) other than that, the mech mod itself is basically just for the battery and to supply voltage but the rba (rebuildable atomizer) is all in preference. I also use a resettable fuse for extra safety protection.Some have reservoirs like mine and some are rda which is rebuildable drip (have to drip juice every other vape). I personally like the taifun gt since it was cheap and quality. There are many good clones out there. Kayfun clones, russian 91% clones, etc are all great. I buy most of my stuff except wire at fasttech.com (ships right from china and takes ~20 days, but the prices are unbeatable) and most of accessories at kidneypuncher but there is a ton of sites out there. Youtube was vital for learning to build/not creating a short in my wrap, but it's honestly pretty simple. Oh and look for rbas with 2 posts. It gets complicated with 3 and 4 post setups.