Magic: Now you when you have sufficient cash (~40k) buy a water staff, couple hundred ground runes,a at leastana and couple hundred body runes. Now throw contested until level 11, then weaken to level 19. Since you can cast these while safe-spotting you won't require food. You might also throw battle spells if you would like to .
Right, then cast curse to level 25, Varrock teleport to level 37, Falador teleport to level 43. Since you'll need atleast 15 Smithing to generate iron bars(or even 30 for steel bars; both are pretty good, is dependent on personal taste ) I'd say train your Smithing (and Mining as you're at it) There's also a inexpensive way to level up magic. Do Imp Catcher quest and Witch's Potion mini-quest. Get your defense up a bit, then buy from the Grand Exchange: staff of atmosphere, wizard hat (blue or black, it does not matter), wizard top (again either blue or black), amulet of magic, leather chaps/gloves (for protection ).
Mage the cows near Beefy Bill, which makes sure to deposit raw beef and cowhides into your bank account, utilizing Beefy Bill. If necessary, throw the free spell (you have a team of air equipped) called end rush until you've sufficient mage level (magic level 13) to cast fire strike. Then throw fire attack the remainder of the way. A very affordable way to level up magic level.