It's not that difficult if you have at least a basic understanding of how a
device works and an unregulated mod that you can see the components of. As far as online instructions I've only seen how to connect up a
dna board but to be fair I haven't really been looking for instructions to make the whole thing. Anyway the hardest part of making a mod is keeping clean solder points lol. It's a small space so solder w/e you can outside of the box then work on the internal connections. After all that make sure to visually inspect for shorts or anything that looks close enough to arc, and insulate anything you find. It may not necessarily look pretty but at least you won't have to worry about anything burning up all the work you just did or worse. I'll look around for a tut or at least a picture guide or something a lil bit later when I'm officially awake.