Cost for help to move tons of dirt / gravel

[James Conaway]

I need to move 9 tons of dirt and 13 tons of gravel from piles to a yard closeby. What would be considered a reasonable amount to pay someone per ton? This work would be by shovel and wheelbarrow. 

I have a guy willing to do it for $25 a ton, but not sure if that would be considered a reasonable amount to pay.