how much cost to install 800 sheets of drywall?

Answer 1

It depends. Usually it would cost between 16 to 22 cents a square foot(sheet measurement) to hang.And between18 to 34 to finish.On a extremely hard project expect to pay more.
Beware of to low of a bid.As they will more than likely tack on extra fees or cut corners at the end.

Answer 2

depending on the complexity of the project, my idea would be to go to the local vocational school and inquiry about the availablility of either students or graduates wanting work...usually theyre supervised and come at a lower cost.