This maybe not the "fastest" way, or a way that strength pures do.
Here, I'd adivse purchains a GS Or, rent one for a while.
Requirments: A higher prayer would be an advantage
75 Attack Monkey Madness ( Also Recipe For Disaster can be an advantage [ for teleport to Ape Toll] ).
Grab 3 Anti-Poison (4)'s, maybe 10-15 food ( Lobster + ), and some type of teleportation.
Find your way to the alter in Ape Toll (where the big gorillas are) and put protect from melee on. The gorillas CANNOT hit though your prayer and heal themselves regulary. Thier defence level isn't too high either. You just have to watch your prayer points, recharge and also watch if your poisened by a level 2 spider...
Hope this helps!! It sure did for me....