Supplies
Go buy 2 iron scimitars and 2 steel scimitars in Al Kharid.
Next, buy 2 black scimitars, 2 addy scimitars, and 2 rune scimitars at the Grand Exchange in Varrock.
Then, get about 500 trout. These heal 7 damage each, so use when below 5 HP. 500 trout should last you till 40 attack...