Hi Johnnie, I love this movement.. when you get it working you'll see that it winds super smooth and it's pretty accurate too!
Does the balance swing freely? Could be it had a 'jolt' and the impulse pin came out of the fork. If this was the case the balance would stop on one side like it hit a brick wall.
Its a simple enough movement. I usually keep the barrels separate. I seem to remember one being slightly different but its been a while since I worked on one. Anyway, even if they're identical its good practice to re-install them where they came from as they would have worn together.
One peculiarity on this movement is how FL fixed the end of the hairspring, it is screwed to the underside of the balance bridge. To adjust the beat you have to remove the balance + bridge, loosen the holding screw (enough so there's still a bit of friction), install balance + bridge, set the beat-rate by moving the visible end of the hairspring end (you can just see a metal piece with a hole below the bridge above the balance). Remove the balance+bridge, tighten the screw fixing the hairspring end. reassemble. The beauty of this arrangement is that it will not move if the watch is dropped.
Anilv