Theres a easier glitch for NaN gold but it dosent work on all sites and from then on you cant save or it will delete any save in that slot and it will become emty. When you first start you have 1 line of men. Move the last man on to the front line to the second. Save the game then refresh the screen or exit the game and get back on and when you look at your men. On the first line you will have a soldier that blinks to different soldiers. Sell that soldier and you will have NaN gold to me this seems longer but it gets really easy once you know what to do.
