am almost 56 crafting and it will take 20k cowhides so around 2mil to get to 70 so it would take u a lot more cash as for smithin buy loads of iron and coal ora make bars sell bars again runecrafting like the other person said air running plus mage should take that long to get try get 2k chaos runes see how long they last as for prayer u could do mage and prayer at the same time on moss giants