If you really want to be a cockney, you need to write in back slang, or rhyming slang.
Ti teg uoy od.
I doubt you'll even understand what i'm saying if I ever done that
well, it may hurt some natives around here especially when doing the suggestion of australian accent, I heard they don't want them to sound really bad or sucks trying on their language. Though this may only be a joke but there would be a lot of whining after that. 
Ti teg I.
okay, i'll 'ry ter be considerate an' make some on cryptohun'ers posts. , innit (Cockney Translation) a bit wrecked for my english grammar
Looks more Geordie to me.
Post this on bounty section and you might have "many" youtube videos to review.
They'll probably all just be linking to the one video copied and pasted 10000 times in succession.