Personally I wouldn't do any of them for money I would do either of the following two things: Buy: 500 Nats - Around 225 Each 500 Mith/addy Ore - Around 265/1050 Each 2000/4000 Coal - Around 170 Each Total - Around 585/637k Superheat them all Sell bars for around - 600k/1.1mil Not much profit on mith but loads of mage and smithing xp and profit on addy Or Buy: 500 Nats Mine: Needed coal mith & addy Sell for a huge profit although this is rather time consuming Best of luck in whatever you do :