One of my ongoing projects is a US half-track, and the various brass door and bonnet hinges are bent out of shape.
I found some similar sized steel hinges from a source in China but the holes are slightly out, so I'd have to modify all the steel panels, and there are 25 hinges in this kit

I was thinking it would be quite cheap to have the parts cut from thin steel sheet, but it's bending the ends which would take the time.
I have some jewellery bail making pliers but I'd need to check if they would be long enough.
Adrian.