Ok.
This is where i am at the moment.
I removed all the alignment blocks and i have to say the hinges seem to work great.
the alignment of the hatch looks good too.
However since al the alignment blocks were removed you can see the complete result without any tension in the material.
I see i have to lower the horizontal beam above the hatch a little by about 3 mm (a little more than 1/10 of an inch).
It probably happened during welding in the middle rib (backbone) of the teardroptrailer. Since that is a curved (pre bend) part you have to be very careful with bringing in heat with welding.
So ok,a little more to do....
The next job is first to mount the alignmentblocks again, and mounting ( welding) the vertical rib in the hatch.
After that lowering the horizontal beam above the hatchdoor a little to smooth things out.
Than, try to make some detailphoto's of the hingebrackets clearing the "watergutter" drain.
Only than i can see if i can mount and use the 3rd.hinge in the middle of the hatch, and if so weld it in, etc.
And than: creating the "rainwatergutter" drain system behind the doors, and hatch.
However at that time it will be 2024 for month's already.
Meanwhile still searching for a suitable set of door and hatch handles and locks.
Some time ago i found something on an American internet site, however they don't ship to the Netherlands.
So looking further.....