My car does not have any door latches. I was going to install the small version of the Bear Claw. Does anyone have any advice on a new installation?

I am concerned about the exact location and adjust-ability. Does the install have to be spot on or can I adjust these for proper fit?

Does anyone have good close up pics of theirs?

Do I put the pin in the 'pillar' and latch in the door or the opposite pin in the door and latch in the body?

Thanks!