Fauzt is pretty hardcore for a bowzon. Duncraig is far easier. You should supermax EF, because:
1. You dont have defense
2. You get Forth or Fifth ( if you have punisher) source of damage
3. EF pretty much gets you to IAS cap easily and gives you extra walking speed.
Paragon is the only viable choice for farming. Also hitting FHR cap is very easy with Wild and Free. All you need is a leeching source ( laek, %LL) and some procs to deal with different immunities. The problem with fauzt for most characters are the nasty necrobots. If you dont rush into big groups and have decent amount of reanimates, its very doable as mid gear bowzon, but slow and painful
You should also consider respeccing to Wyrm/Phalanx/Barrage build. Snipe with Wyrm from afar and finish off those who come close with barrage. In situations where you can position yourself well you can spam Phalanx and kill offscreen.
Note: Wyrmshot build is not very suitable for SOL runeword.
ps. Runewords can be made only on Grey items.Luck Trial
Some weapons are specially forged and imbued with great power. Alas, they look exactly like a normal weapon. It is only when you test them with great powers that you might find their true nature. One usually buys a Mystic Orb from weapon-smiths for the test, but sometimes it is sold by people with magical powers.
Any weapon + Mystic Orb with Luck Trial → returns item, may add bonus
This recipe has 2% chance to add:
Orb Effects Applied to this Item are Doubled
The recipe always adds +2 Required Level. You have only one chance per weapon, if the weapon fails the trial, trying again is useless. If it succeeds though, the weapon is of such fine craftsmanship and power that the Lucky/Blessed Lucky/Lottery recipe and Athulua's Blessing will always work with it.
NOTE: The bonus does not double the Mystic Orb effects added before the Luck Trial recipe.
You should use either T6 Reflex Bow or Sacred one (if you have enough dex to equip).