Without light? I'm not sure if that's a smart choice, Charged Wind/Charged Squall is one of the most usefull skills in PvP, and very usefull against Giants and pt mobs!
anyway, Wiz with Fire/Cold/Earth at level 100 with Moving+Noise is : 1,118,129
0 gap 1>100 : 354,640 SP
So you need to farm about 800k (9 gap 1>62) Or just do it on ong ^^