I see that its a dual post velocity style deck. As baditude mentioned I would start with simple wire coils of kanthal.
I prefer to not go thinner than 26gauge wires as I find myself clipping thinner wires with the hex screws.
Google "Steam engine coil wrap", you'll be presented with a calculator to assist you with resistance, number of coils, wire thickness (gauge), inner diameter (bit you wrap your wire around) and finally how many wraps is needed.
The coil building should be pretty straightforward. Its the wicking part you have to tinker with as every RBA / RTA is unique.