Using double bow are not best in slot, but you can make it work for sure. I have to add, stam DK might be the worse class to do bow build with, since they dont have any bonus for range or physical dmg.
Sorcs have 5% physical dmg and ultimate reduce cost and high stam pool.
Templars have crit dmg and wpn dmg stats in passives.
Nightblades have crit, crit dmg and good skills that can be used with bow.
DK's have standard of might and venomous claw, which is designed for melee dps.