Hi Mick,
I cut the hinges from sheet on my guilotine to the width required. The hinge ends I form with a pair of fine pliers to get the curve started and then use a smooth flat pair to work it round the wire I use for the hinge pin. When the the hinges are formed I cut the straps to length and shape the ends. I then solder them onto a bit of wire for the pin leaving it over length to grip.
The straps are teased into shape so that they lie on the surface of the door usually needs a bit of a twist put in and the backs tinned. I then tack solder the door, by the edge away from the hinge pin, not a piece of 28 thou NS plate which I keep for the job. The hinges are positioned and held in place with another solder tack at each end of the overlength wire. Solder the hinges to the door, easier if the door is NS but can be a bit of a pain with brass as the heat spreads so quickly.
Clean up the solder before removing from jig. The part of the hinges which fix to the smoke box I make from brass flat filed to shape and left overlong at the back until soldered onto the pins, then Cut off flush with the back.
I am writing this on the train and will be away from home until Friday so cannot post a picture but I hope that is of use.
Ian,
On his way, with others, to a bit of a pub crawl in Leeds!