Sorry, I don't have a nzonic, so i'm of no help on that front... but I can say that i've set up my Nimbus on a Provari with some success. I generally run the nimbus on my mechs, but i have set up a nimbus on my buddy's provari and he loves it.
First off, I hated my Nimbus when i first got it... and it sat for a month unused... then one day i played with it and got it running a way i liked.. I generally set mine up using 2mm silica and run a dual wick set up... i use about 6 inches of wick total... I take one 3 inch piece and i fold the wick twice to make a "S" shape.. so its basically 6mm thick and 1 inch long... I wrap that 4 times with 32gauge kanthal (gonna play with 28 gauge once that comes in..) slightly off center so where the wick is centered, but the coils line up with the posts... for my mechs i wrap 4 times... for the provari, i wrap 6 times... then add the same coil and wich set up on the other side...
I find that this set up holds a good amount of juice, wont leak unless you over fill it quite a bit...
a note on the Provari... remember that there is a watt limit on those... about 15-16 watts... so you'll have to drop the volts to keep it from erroring out on you. With the 6 wrap dual coil... i usually end up with about a 1.2ohm resistance... so you can vape at about 4.2 volts max or thereabout. This will get you close to the 15 watt max...
Also, if you're thinking 15 watts is too hot... please remember that its being divided onto 2 coils, so its basically like vaping a single coil at 7.5 watts...
Anyways.. hope that helps..
Also, i'm sure you'll enjoy the Nzonic... looks like a solid mech!