I'm a fan of the Indy stunt show too and had a blast the one time I got picked to be in it. Even when you know what is going to happen, I'd say its more rewatchable than Lights Motors Action is. If it came down to keeping only one, I'd say get rid of LMA and keep the classic.
Definitely one ride track with moving doors. I've seen the secrets behind it on TV before, but there is a diagram on the wikipedia page to give you a better idea of how it works:
http://en.wikipedia.org/wiki/Indiana_Jones_and_the_Temple_of_the_Forbidden_Eye
Scroll midway down to "The Ride" section. I know you need to take Wikipedia with a grain of salt, but this is one instance where the facts are confirmed elsewhere.