When you have 30 Coppers press [F1], 4 to will highlight the 30 copper hill.
Place the hill somewhere, and you will now have -320 Coppers. Save your
track and reload it. You should now have 0 Coppers. Press F1, 1 to highlight
the 0 Copper location. Use it to clear the hill, replacing the hill with
that ground. You should now have at least 320 Coppers. Repeat this as many
times as desired.
