Making money on runescape?

Hi Everyone, I'm trying to make enough money to buy a Dragonfire shield, which is currently 17m (I believe) and I have about 6m. I really would like to get enough money to afford one, but I don't know how. If you'd like to look me up in the hi-scores or add me so we can chat, my user name is kibbleznbitz, but I will type out my stats in case you don't want to look me up. Attack:78, Strength:80, Defence:77, Range:46, Prayer:44, Magic:69, Runecrafting:44, Construction:40, Dungeoneering:27, Hitpoints(or Constitution):77, Agility:46, Herblore:57, Thieving:51, Crafting:54, Fletching:81, Slayer:55, Hunting:44(I'll probably have 45 by the time you read this), Mining:62, Smithing:52, Fishing:99, Cooking:66, Firemaking:60, Woodcutting:74, Farming:39, and Summoning:24. Also, I'd rather not do anything combat related because I don't want to die, but I will if it can get me good money.