Such a great tank Vapemac you will have a great time with this tank. Vapour and flavour is exceptional. It is also probably my fav draw of any atty wide open.
I run mine either 2.5 or 3 mm with the coil sitting just above the posts. The 3 mm is a little tricky but it will fit. My kanthal is either 28 or 26 gauge, mostly 26 atm.
Two ways of coiling would be the way I am doing with the coil above the posts which will give more vapour and sacrifice a little flavour or run a 2.5 mm coil under the posts close to the hole giving you more flavour. You will have to experiment to find which suits you best.
Wicking is dead easy on this tank too. Don't run your wicks through the holes in the chamber as I find it will give me dry hits.....(using 80VG). Instead I always thread the wick, place the middle section on and pull wicks up. I then cut them leaving around half a centimetre excess over the top.
Then you just poke it down into the chamber leaving two large puff balls placed against each hole. You can also do an s wick if it works better but I find this method just works wonderfully and never a dry hit or leak. Will try to post a pic when back home in a few days.
If you want a video I think Matt of Suck my mod done a wick job on the hurricane which uses the s style wicking so is very similar.