Hey Leon, I was just thinking...I am going to be in Australia next week. I'll be mostly in Melbourne but I could easily do a Brisbane daytrip if you had a spare couple of hours to show me round your emporium!
The 8th would be best, especially as you might have some post-holiday laundry to do! If the 8th doesn't fit with your plans, then I could do the 9th or 11th. We're heading home on the 12th.