Is there enough clearance to reinforce the outside of the piece?

 

RF5BPilot
Thanks for all the info very helpful
and will store in my mind for I know it will be needed one day
thanks again

 

Plastic welding it with a soldering iron and a wide flat tip works well as long as its hidden when installed.

 

@ spender: Good to hear that Plastex works. Website looks a little amateurish. Still might go this way.

@ RF5BPilot: I build & fly RC models, so I'm very used to working with microballoons in epoxy as filler. Never tried it with flox. Very interested in this.

@ Mark I: There's enough room for both pieces on the outside of them, but the smaller one broke so close to the interlocking hole that I don't know if it's fixable by any means.

Finished up fixing the door lock today, which is why I had to remove the door panel in the first place. Even with this minor glitch, I can't imagine how much I saved doing it myself!