I agree with others that PeopleMover narration would be too noisy, plus I'd be a little concerned with keeping the signal on the inside portions of the ride.
A few thoughts:
- Like several have mentioned, the path from Space Mountain back towards Barnstormer. Only problem with that is a train going by.
- The rest room area near Crystal Palace
- Near Splash Mountain, there's a path that heads back into a non-guest area. You can walk back several feet before the gate. There shouldn't be anyone there and I don't think there would be much noise from Splash Mtn. That path would be on the Pecos Bill side of Splash.
- Depending on what time of day, you might be able to sit in Tortuga Tavern or the outside of the new Jungle Cruise restaurant (forgot the name). There's some big chairs there and if they're not open yet, it might be a good spot.
- Maybe somewhere near the Carousel of Progress entrance.