PoE Tukohama, War's Herald, Projectile builds

I was working on a molten strike chieftain starter and ended up coming up with this: &x200B; The defenses look pretty nice, and I was planning to replace 2 of the skill gems with returning projectiles and trauma support when they get added. I wasn't really sure how to get the correct dps in pob for molten strike so I'm just hoping it's significantly higher than what the number I got is lol. &x200B; Any suggestions to improve this? Going non crit for league start cause it just seemed easier.

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