Train to 70 defense but if you are an archer then you have no need for attack and strength, so i would say get them to 40 max Edit: if you were to get 70 def and 40 attack and strength you would be level 67 and still be ranged based if you got 60 attack and 60 strength you would be level 72, melee based* *This is provided your magic and prayer levels are lvl 1