My Honda Civic Rear door handloutside broken off an door not opening from inside

I'm sorry - this forum cannot provide estimates. The Estimator tool on RepairPal provides estimates on certain things -- but won't on this concern, as it's not "common" and is pretty specific to need. The truth is - if you can't get the door open, the inside door trim panel will have to be removed to manually open the door. What it will take to do that is unknown, as it will require some maneuvering to do that. This is an "actual time" repair and will take some effort. Good luck! www.repairpal.com/repair-shops