how much does it cost to have an electrician to hook up electricity to a mobile home?

I have bought a dbl wide mobile home and I have been told that the movers will only do so much on getting the electricity hooked up to the trailor, that I would have to hire an electrician! I would LIKE TO KNOW and A.S.A.P. what is the cost for this! Cause i do not want to get ripped off! thank you in advance for a much NEEDED QUICK REPLY!!