We'll know more next week, but the plan is when he gets done with what he can throw over the dam to bring in a truck and haul it away. He and the truck should be able to work from what will be the shallow water areas around the edges.
As for setting a price, we kind of decided that he'd work about 40 hours. After that, we'll have to decide if we want him to dig more, or if I want to be able to afford to eat this winter.
It took probably took 40 years to fill in, so in another 40 years I'll probably either be dead or too old to care.