Welcome btw, you are getting in to vaping at the perfect time, sooooooooooooo many options for rba tanks and rdas these days. Hell the disposable coil clearos mostly have rba sections now so youre golden whatever route you take.
For example this kanger kbox with tfv4 tank and single coil rba included prebui.t .73ohm coil is perfect at 40 watts with wicks slightly hanging in the juice channels.
It looks like 24ga kanthal to me and cant wait to try rayon on this thing.