tehres so many different builds... depends if you want def, what kind of staking you want, if you can get a .1 pid i would suggest a 1 def range pure because first hit on a 1 def is a huge advantage.
First I would get a bunch of iron knives, train my way to 70 range @ rock crabs, do the animal magnetism quest for avas attractor. than from 70+ you can chin @ ape atoll and get high HP along with it. The higher hp the better for staking. It would cost anywhere between 30m-50m, probably somewhere in the middle there, hard to say. Also if you want to chin you will need 44 prayer however, so if you do not want prayer you will have to train at rock crabs the whole time to your desired range level, experiments are better but i think you get 11 prayer in order to go there.