PoE Bossing builds without Duelist, Shadow

I was looking into some wierd build ideas and actually found a very interesting concept here. Geofri's devetion Elemental Warding ability has an insane amount of base damage (2 to 3k physical damage) and auto converts it into a random element. As an elementalist all your damage can ignite. I threw this together quickly: The base items to get everything going is less then 15 chaos: 2 chaos for base weapon+prophecy 1 chaos for alpha howl (need the reduced mana reservation) 1 chaos for Rotblood ring 1 chaos for some life jewels with 1 damage mode, times 4 With just those items, 20/20

I'd like to put together a Cold Conversion Sweep character. Seen a few Sweep videos online (FastAF & Mathil) but want to do the gearing my own way. 1. putting Sweep in a pseudo 7/8 link helm similar to this one in the picture 2. 6 link totem setup in weapon (voidforge or crafted rare using Fleshripper/ Banishing Blade/ Exquisite Blade) 3. double curse setup in chest (Explode or Carcass Jack depending on ascendancy) or just get curses on rings and use this 6L for another setup What would be the ideal ascendancy to go with? Trying to decide between Assassin, Slayer, Berserker, or Raider.

Leveling (Not tested) -Create a witch and level it to for grab flamewall and arcane surge -With Chieftain us Fireball + Arcane Surge to level 4 -Use Holy Flame totem + added fire damge + Combustion and fireball with arcane surge - At level 12 grab searing bond + combustion with HFT - Craft a fire damage wand with an alteration + ruby ring and magic wand or scepter as soon as possible. -Be on the look out for high physical dps bows. -Switch to Artillery ballista after library 2 reds 1 green or 2 greens 1 red Artillery ballista + Elemental damage with Attacks + Added Fire Damage or Vici