Insight on cost to demo

[Jordan Hall]

I usually do my own demo so I’ve never gotten an estimate but I am currently in the middle of a project and a deal has popped up. The only way I can think to make it work is to sub some things out, demo being one of them. Having never hired anyone to do this I have no clue what to budget to see if it would even be feasible. Can anyone give me a ball park estimate on what the cost might be?  

The house is 1900 sq feet with lath and plaster. First floor , second floor , and finished attic all will need demoed to the studs.