I think that can be arranged.
Just packing my stuff now. Unfortunately I wasn't able to add to my wardrobe as Weird Fish (where I buy most of my T shirts) has closed down. In fact there seems to be a lot of boarded up shops on the main street that I hadn't noticed previously.
Rob said that clothes are very cheap in S Africa and the aparthotel we're staying in for the first 3 days is above a big shopping mall. Sorted. I've actually managed to find 6 shirts that look OK so it isn't a problem given I'll be spending 90% of the time in shorts and T shirts.