Thank you YHR.The hinges look a little different now as fixing them with superglue was not good enough.I had to pin them in place in the end and had to build them up with solder to make them beefier.The brass I used is very thin to make it easier to bend around the pivot pin.
Basicly I cut out the brass to what I thought was an appropriate shape,on piece with a long central tongue,the other with 2 thinner tongues that would fit either side of the tongue on the other piece.
The tongues were then bent around the pivot pin and the extra length soldered to the back of the hinge plate.The I drilled holes in the plates to accept brass fixing pins,which were then soldered in place.
All this is then lined up on the hull and door.drilled and glued in place.
Seems quite strong now they are pinned in postition.

I hope this helps,my descriptions are not very clear sometimes.I now wish I had taken construction photo's.

Cheers.