"4mill IGB. No more, no less. Pay @retail by buying 4 apples @99,999 Bells each"
Just a heads up: 4 times 99,999 bells doesn't equal 4 million bells, but 400k bells. If you want to use this method, you'd have to put 40 apples of 99,999 bells each to get 4 million bells.
Good luck on selling Fang!