Keikyu loop antennae

[Guest keio6000]

I have a couple of greenmax keikyu trains in pretty good nick except for the tops of the loop antennas being broken due to rough transit in a jury-rigged case. Does anybody have a source for replacement pieces of any make? Need not be exact.. Close enough will be close enough. The alternative is a stretched sprue repair. Maybe its also possible to make these by bending something like a soft piece of metal into shape.

 

I dont remember offhand what exact trains they are, but i think they may have been an 800 and a 1000. The antenna in question is the one on the head cars.