Any veterans help me build a passive tree for fulminating concoction int-stacking pathfinder?

I am a new player and am committed to making a fulminating concoction build stacking intelligence to make use of the lightning nodes up top increasing damage by 2% for every 10 int as well as the unique gloves adding flat lightning damage to attacks per 10 int.

Plan is to go for a heavy ES build with eternal youth and CI as well.

Trouble is figuring out the best path to get up to the lightning nodes at the very top of the tree.

So far while leveling, I have been using Herald of Thunder and Grim Feast, playing around with doing something with Cast on Shock, and have some beginning thoughts about using Lightning Conduit with very buffed up shocks, but I'm not smart enough to figure this out yet lol.

If anyone is bored and wants to help a noob try to figure out if this is a workable build at all, I'd love your help. Of course I am using Widowhail with the quiver nodes as well on the passive tree for the +levels for concoction.

Happy to answer any questions as well!