Car is being fixed on Tuesday, got an estimate from CB Automotive, a Honda/Acura specialist
http://www.cbautomotive.yp.ca/ it will cost $700 to fix the head gasket and you can call them to verify.
Still entertaining any offers of $1500 AS IS until Monday night- afterwhich the price goes to $2800, which is fair market value for this car.
Please call the seller directly, 416-494-3205, or you can reach me through PM.