If you can't walk right in to a show, you shouldn't have to wait any longer than it takes for one show to cycle through. I hope that makes sense! The best part about going solo is not worrying about pleasing anyone but yourself! You can wait for something if you want or move on and come back later. Make sure you take time to visit Tom Sawyer Island, ride the Liberty Square Riverboat, ride the WDW Railroad and experience the Monster's Inc Laugh Floor. These are all worth doing and with the exception of the Laugh Floor, shouldn't have long waits. I also recommend trying Sorcerers of the Magic Kingdom and A Pirate's Adventure which are both fun interactive games you play at your own pace.
PS: It's my pleasure offering advice, so you are quite welcome!
