Need help with door! (or seat belt)

[TheLast929]

I've checked the FAQ's and done a thread search with no help for my '63.
I make a right turn and my driver door opens. Good thing the steering wheel is strong! One handed manual steering while holding a door closed is interesting.
I've attached picture that I hope will help. My gaps are good all the way around. Door looks a bit low in the rear when looking at body line.(see pic)
The Three positions of the latch are noted in the pictures. #1= open. #2= 1st catch. #3= 2nd catch/closed. #4 Striker plate.
I cannot move the the striker more than about 1/8 of in inch. It is not set up for realignment. The latch on the door seams to be non-adjustable as well.
I cannot get the door to close far enough to get into the "closed" position. it does the 1st click, but wont hold the door closed.
I have no weather stripping so it is not an issue of the door not closing enough. It goes waaay past flush. IF, I realign the door a bit rear high the latch will engage the 1st stop, but it still won't 2nd "click".
My latch looks a bit worn, but the striker looks fine. In a joking, but not really, i was gonna tack on a little metal to the striker to get the second click!
Any thoughts?