Australia v England Twenty20,Prematch Homework

Hello,
Three matches today in Twenty20 World Cup.Already many upsets in this version of cricket.I enjoyed two trading free days and feeling relaxed.
First we will take Australia/England match and try to make a safe plan for trading in this match.
So far no score is looking good to defend and i am predicting this match is going to be another high scoring match (400+ total runs in both innings)
Basic plan:
1.First Innings-
(A)If England bat first lay Aus in 1.5x
(B)If Australia bat first wait for sometime and then lay them in 1.4 because it may not go down upto the end of 1st inning.
2.Second Innings-
(A)If England chasing 200+ and assuming odds at that time around 1.5 of Australia.Lay Australia just start of innings or wait and then lay in 1.3x
(B)If Australia chasing 200+ and Australia odds at that time may be 2.2 than back Australia in 2.2+ odds in start.
P.S:
All these are just predictions.My advise is to wait for 2nd inning is more safe for trading and do most of the trading at that time.Lastly i will try my best for inplay post.
Good luck