i got almost the same quote for the bricks: Brampton brick around $2.5/sq.ft.
but the cheapest natural stone price I can got is $215/ton, which covers around 40~45sq.ft.. that is almost double the price that you can got.
the cheapest arriscraft stone(fake stone with full brick size profile---around 3.5 inches) i can get is around $5/sq.ft.
would you let me know where you got the stone? thanks