dart sport/dusters w/factory sunroofs help please

On my 73 dart sport I am missing the sunroof crank and gears or whatever the assembly was for it. If anyone has any pictures of whats missing and possible places to buy the parts (if can be found) would be great. I dont know whats all missing but for certain something is lol. If you look at the close up thats where I presume the crank would have originally resided but nothing to attach it to or nothing that I can see that it would even turn.