Just to keep things interesting. Here are some fire zon type bows I have come up with. The jeweler's one would be pointless, but still cool. A 5 socket normal matri could achieve a little bit more ( 15 ed, +3 atr )
Definitely hard to beat the runeword bows though. Although that +6bow is
Phoenix Matriarchal Bow
Hand of Justice Matriarchal Bow
But beats my p upd kuko ;3