The fact is if you're coming to London you need to have an Oyster card. If you've got one you'll get charged whatever the fare is from Zone 1 to 2. I've got a Coffin Dodger's Freedom pass so can go anywhere in London (old school rail lines after 09:30).
I know your reference to Clapton Orient is foobal based so I'm not going to rise to that bait!!
Hey Aqualung! Is this interest in the next crawl an indication that you might be joining us? I do hope so!
Come On You Hatters!