well for a pure str bow lvl the 3 books pachion/ fire/lightning pachion is your bow skills, fire adds to your phys dmg (also fire is the most damage imbue),lightning for grasswalk
as far as skill points you need a ton you can figure out how many you need at rev6.com look on the left for nivlam it should bring up a desktop.
use their start button select chineese sp calculator.
if you dont want to do that just save up like 1 mill sp and be picky of your skills. perhapts ask a guild mate or friend that plays. good luck