Your best bet will be cannibalizing the Smok coils.
Done carefully, you should have no issues using the wire from them.
Using Cat5, telco, or speaker wire is not only dangerous to health, but it will likely melt through almost immediately if the mod will even fire it. It will register as a dead short.
The wires mentioned above are also specifically designed to be ultra low resistance.
For example, Cat 5 is generally 8 conductor, 24 gauge copper alloy that has a resistance of about 2.5 ohms per 100 feet.
Good luck wrapping a .9 ohm coil with it that will fit in your cupti casing, lol.
I had to go ahead and point this out since it appeared some were actually entertaining the notion that using using any of these wires was remotely possible or advisable.
Thus endeth my PSA.