Get cowhide and go to the desert in the bank say "sellin cowhides 100gp ( if thare is so mutch chat going on that noone can see urs use my auto talker)http://www.freewebs.com/runescapebychris/havingtroubleselling.htm so anyway they sell for 50-150 gp.

look at my guide on cowhides below

                                                          

Item # 0302: Cowhide
Item Category: Crafting	Stackable: No	Tradable: Yes
Street Price: 100.0 - 150.0 gp		Specialty Shop Sale Price/ High Alchemy Reward: 2.0 gp	General Shop Buy Price/ Low Alchemy Reward: 1.0 gp
Member Item: No	Quest: No
Stats Bonuses/Losses: None.
Requirements to Wear/Wield/Use: None.
Known Item Uses: Can be tanned into leather for 1gp each.
Item Effects: None.
Item Options: Use, Drop, Examine.
Respawn Location: None.
Dropped by: Cow Cow calf H.A.M. Guard H.A.M. Guard H.A.M. Guard Undead Cow
Where Found: Monster drop.
Notes: This item is associated with the Crafting Skill.
Examine Info: I should take this to the tannery.

1.Go to dark knights fortress. :WARNING: it is in lv 16 wilderness and you need to fight off lv 8's

2.Go inside.

3.Then thare will be runes inside

4.get them

1.Thare are also runes in the frozen waste pleatau near the end. :WARNING: lv 57 ice warriors and lv 50 wilderness.