Postal times

Haha, sorry for asking so many questions but I like to keep well informed. Anyway, I am curious about postal times (specifically in Queensland Australia)
There's a show (Fair) coming to town on the 3rd of July, and I hope to have my outfit ready as it's perfect opportunity to take a few snaps! What is the average time of delivery from Bodyline and My-Lolita-Dress? (I'm too cheep to afford express delivery so airmail will have to do, also I don't want to get hit with customs taxes :s )

**Edit Also, how long is the average express shipping?