Take a look at an application called IPH (isk per hour) I am not sure if it is being developed but it will show you how much you need in materials (normally as a method to buy but you could mine them if you wish.
Take a look at an application called IPH (isk per hour) I am not sure if it is being developed but it will show you how much you need in materials (normally as a method to buy but you could mine them if you wish.