Hello I will help you with your question,
Once you remove the inside door panel
You can replace the latch/handle
Look these over and let me know what further questions you have about this
I have a tool that I slip under the panel next to the clip and lift to pop the clip out of the metal door. They are pretty tough so if you use a stiff putty knife or other such tool right next to them and work your way around the panel they should come out just fine.
Sorry I should have posted this also, see if this helps