PC on Zealous Longbow of Deathbane

I got this in a drop and I've never seen one. Does anyone know how much it's worth. I might sell it if I get a good offer.

Zealous Longbow of Deathbane
Piercing dmg:15-28 (req 11 Marksmanship)
Energy gain on hit +1
Energy regen -1
Dmg +16% (vs undead)

Is this best used in UW and FoW?

Krammit: Thanks for your reply. Too bad it's only 16%. And then, there is the matter of which mod gets salvaged.

I think FoW more than UW, but 16% might take you a while to find a seller. The only thing actually worth money on that is the deathbane X.X so I'd try to salvage it and see where that takes you [deathbane should get you 3-5K]