Suggest making some f2p miners and try and make around 10m-20m, taking around 2-3 weeks using free bots. Make 1-2 accounts, 70-70-70 and bot them at blue dragons. That should rake in a decent profit, if you want a even greater profit, you can try and bot 60 dungeon on both accounts. By then you should be raking in around 7-10m a day.