Xoph Nurture burning arrow chieftain idea, need help

so.. i was thinking of making a burning arrow build and this is what i came up with
www.poeurl.com/0cq <- tree
it would use Xoph nurture bow,
Burning arrow - Gmp - Faster attacks - added fire - (cant decide between inc burning dmg and fire pen) - Pierce

Kaoms heart for around 6.5 to 7k life

signal fire quiver for additional fire dmg
herald of ash, anger.
xoph blood amulet...
voidwalker boots for phasing/ pierce when i killed recently
anyone has any suggestions/tips/changes?