1975 dodge dart sport sunroof help

Hey i have a 75 dodge dart sport with a sunroof that i took off and i realized that this part on the right side of the sunroof was broken. need help in where to get a new one or used one. any help would be great! Picture are below. The one that is shaped like a 0 is the non-broken one. But the first pictures is the broken one. Also we need any weather stripping and trim. Thanks

Broken
<a href="http://s217.photobucket.com/albums/cc301/O12kona/?action=view&current=broke.jpg" target="_blank"><img src="http://i217.photobucket.com/albums/cc301/O12kona/broke.jpg" border="0" alt="broke"></a>

Non-Broken
<a href="http://s217.photobucket.com/albums/cc301/O12kona/?action=view&current=nonebroke.jpg" target="_blank"><img src="http://i217.photobucket.com/albums/cc301/O12kona/nonebroke.jpg" border="0" alt="non-broken"></a>