It is all good building your own coils but there is a much better alternative which is buying ready made coils - you choose the metal, you choose the resistance thus still giving you a greater degree of control. Might be slighlty more costly (matter of pence) but your saving alot of time and hassle building one.
I've started making my own ni80 coils as I bought a single coil Zeus rta and wanted to make sure the coil was wrapped the right way. It is strangely satisfying building your own coils and wicking yourself. The ni80 seems to chuck vapor much faster than the pre made kanthal coils