Hi Harry,
referring back to your earlier request, sorry I haven’t responded before now. Xmas and ‘things’ getting in the way ..!
I’m sure in the meantime you’ve researched SA regarding the questions you raised.
However, my thoughts would be ...
Clothing - October and March weather conditions don’t look too dissimilar, so requirements probably much as you suggest. For me, the only time I required something warm was for the morning drive to Kruger which starts before sun up. I did the walk on the second day which set off after sunrise. So, no need to go overboard on the ‘warm’ gear I wouldn’t think.
Plugs. - I took two SA adapters and tended to charge phone/iPad/camera in the evenings. The camera battery ran out one shot too soon on the last day as I’d finally worked out how to use the video function (thanks Carolyn) !
If you’ve got a spare take it, as Kruger affords too many video opportunities and it would be frustrating to ‘miss’ something memorable. I’ve recently bought a second battery for my Canada trip and may even get a third.
Money. - I took plenty of Rand and a credit card just to make things easy. Work out how much you need for excursions. Then add a decent amount for ‘tips’ (there’s quite a few). Several lunches/snacks and souvenirs and that should cover it.
I’m not sure if you’re doing the Zambia add on, but different requirements there, so maybe check some other posts for tips on that and also euro plugs, travel cards etc.. There’s sure to be some useful pointers out there.
Have a great time in March. It’s a cracking holiday !
Roger