You're right, it's not 'common' for people to sell for that price. Soooooo, four hours into your night of trying to buy that many, you're likely going to only have a few ranarrs, and congrats on the marvelous 2k profit you'll be making on a small handful. "Merching" doesn't mean buying insanely low, and selling insanely high with a few items, you'll never make any money, and it burns so many nub merchers. Try this. Go f2p, buy all the coal you can 180 (not 150) pay the extra 30. You can buy around 13k coal with that. Get on the forums, toss the lot up for 200 each. and wham, let's say you spent enough for exactly 13k coal. Spent: 2.34mil. Sell all the coal for 200 Ta-da, 2.6mil. And I'm fairly sure in a busy F2P world, you should be able to milk coal fairly fast for that price.