I'm leaning more towards a grey suit. Though I don't think we'll be needing a tie or jacket coz it's in the middle of summer. Not sure on his budget, will have to check.
This is a pretty popular store here, will probably drag him here. http://www.yd.com.au/
I think it's only fair to recommend something of good quality and so I would suggest that you go ahead and take a trip to London to see David Mason who can fit your boyfriend with a beautiful three piece suit in a grey (rather black and white) Glen Urquhart check.