Do you pay me back for any expenses like using the alkharid tollgate or purchasing wizzy brain bomb. Dragon Slayer OSRS Fire Cape. Capable of killing the level 83 dragon with 15k (plus a range rune, air rune and a law rune) and a lesser demon.

Because you're a non-paying player, I'll inform you about the best ways to obtain green dragonhide bodies. You can buy the nats or bodies through the grand trade. Although you will get the most value from this, you'll only earn 20gps per alch. The most you can lose would be 100gps every alch. It will take around 200 hours to complete 55-99 high alching. It would cost between +3.9m between +3.9m and -19.8m. There would be 198k alchs.

It is necessary to first attain 55 magic. I'd recommend spending between 200 and 300k on fire strike or earth, and using them up on lessers. Firebolt and fire strike can be employed to kill monsters. I don't know how much that could cost or make, due to monster drops being random, and all.

You can also use curse to level up. You'll need to purchase 99 of these items, which would amount to 17.9. You'd need to buy 898k water and 449k bodies (dont use earths, as you'll need 3 instead of the 2 waters, so it'll cost less). Wear armour made of heavy metal and anything that grants a negative (-) magic bonus Buy OSRS Power Leveling. Your curse isn't going to be a threat to monsters, so you can cast it again and again on him. Even if you fail, you will get the same exp.