$664 from here:
http://www.supplyhouse.com/Easy-Heat...-Heating-Cable
http://www.emersonindustrial.com/en-...s/default.aspx
Can't see it taking more than a few hours for someone to install. If you need an outlet installed I suppose that's an extra $200 for an electrician. Be careful out there, some are much more expensive than others. Also, the unit above is 700 Watts, which won't be cheap on your electric bill.