I bought (two) original LH latches for my truck off eBay, less then $100 for both. I also used an NOS striker which when compared to the reproduction I had was almost 1/4" off on the catch area. Between the latch and the striker my door now locks perfectly. My passenger side like most works great just due to usage, I did buy another NOS RH just in case.
https://www.flickr.com/photos/advance-design_parts_co/25279723473/in/album-72157631868452754/