I have have a stuck door on my 97 S14

The P/S door Lock/Latch no longer functions forcing my passenger to either enter my car on the wrong side or get in like the dukes of hazard. During the last I would say 8 months or more, I as well as many of my friends including a fab shop in town, have tried everything short of unbolting the door hinge and cutting it off.
I have searched here on Nico and on Zilvia for an answer to this seemingly common issue with no luck
Does anyone have any idea how to solve this or if the S13 latches will be similar enough to use if I end up cutting this thing open?
ANY help is appreciated
