How much should it cost to have a electrician revamp all wiring in a 2000 SF home?

Assume there is no drywall on the walls and all the old wiring is gone. Also, let me know if you need more details to answer the question. new york; maybe 20 outlets; no garage; 2 floors; and im not sure about the amps, its for a home, just the standard will do. some electrical appliances.