Alright, so I take it the rebels are going to be succesful, with a short story you could summarize something like that to about 22-32 pages I'd say (depending on how much refining you do to the setting and politics, but by the sound of it it's not that important)
That'd make a pretty decent opening story I'd say, if you try to keep your script to a size like that your options to find a collaborator will be much bigger ^^