Hello Robb,
Which door hinge repair are you referring to, the A post or the hinge in the door itself?
The A post repair is on page one of my thread,
viewtopic.php?f=8&t=7308I did a word doc with all the sizes of all the plate and box section, but didn't transfer it on to my new laptop and it is not on my cloud so assume I have lost it. I also made a template but threw that away as well, sorry !
Briefly, if you follow my cuts to reveal the inner steel box section you can copy what remains, the only difficult part is the rolltube that extends down the door pillar...........you either cut it and join it on to a piece of tube pre-welded in your new door post ( this is where the box spanner bit comes into it, that was purely because it was the right dimension ) or try and cut round it and weld into the new section....but you will have to make your cuts in the GRP much lower into the sill, so you can get the new section behind the roll tube.
The door hinge also cracks in the door itself and this repair is later on in my thread ....page 9 I think.
If you don't understand anything post or pm me and I'll explain further, your English is far better then my Dutch !
You could bring it over for Lee at RATS to repair, it may be more cost effective than you'd think, and you would know it was right.
Good Luck, Ryan!