Op , I experiment on a 32 5w, its a close fit, if you can fish mig wire behind striker to start of taper , it will push striker bolt into door latch .might have to do twice of 2 steps on striker,,Very tight,, tape up where Necessary.
Once this is solved, since the design of the latch can lock and not let you in even if you have a key, I'd consider adapting a small solenoid inside at least 1 door that can move the linkage to an open position. Then put the button to activate it somewhere that it can't be seen easily.
My lock position on 32 inside door handle is up , so not for sure how door handle locks unless handle is pulled up before door closed .my handles might be facing wrong direction (towards B pillar) if so i'll leave that way.