Sorry for my super late reply, I've been out of town for the last week with work. But I got some photos. This is purely mock up. I have only placed on 1 hinge. And the 2nd hinge has to be welded onto the tailgate (due to the design of the tailgate and its welded internal braces I can't just bolt it on). But it will be then bolted to the tub so I later remove for paint.
I used a 6mm flat mild steel as spacer to centre my tailgate. It has been the only thing so far that has worked the first time. I bolted it to the tub. Seems to work. Might weld it in place when i'm happy with it all.
One problem I encountered was body line. I hold body lines as very important part. So getting them right on the tailgate is making me crazy. The problem is its to high on the top. So i hit the hinge bolt holes with the round file but that can only do so much. I might have to relocate the whole hinge down 15mm and re-drill. So i can align properly. Bring down the tailgate that last 3mm.
The next problem is it pushes out down the bottom. But that can be fixed if i relocate the hinge.
The next problem is these stock hinges.I need a stronger hinge. Don't get me wrong the Bdawgs hinges are sturdy. But with 20 years rust it has developed a 1mm+/- wobble between the internal barrel and the hinge. You wouldn't notice if the hinges were placed where they're meant to be. But when placed in this position they suck. They will wear alot quicker and eventually make the tailgate very wobbly.
But have a look the photos. If you need different angles or whatever, just let me know and i'll put them up. Any suggestions would be greatly appreciated. I could always just stop being a tight ass and just buy the FBI kit. But kits are for cheaters
This is what it looks like. You can see where I need the other hinge
Out of alignment.
Notice the little gap. If you look closely at your tailgate hinges you will notice the same gap.