Hi Addison,
Your proposed times seem more than adequate and you will easily get from 1 camp site to the next, it shouldn't take more than a few hours if you take your time.
Kalahari Safari has quite a lot of up to date info on the area as well as some of the other guys based up there (who are active on the forum). Piri is another.
Just take your time at the water crossing and make sure of your line and you will be fine.
In terms of the soft sand drop your tyre pressure to 1 bar and you wont have any hassles either.
We've only been back a few days now and I'm already jealous of your upcoming trip!!!
To overlay your track / route on Google Earth simply click "View", "View in Google Earth" in the Mapsource application
Cheers and enjoy!
GD
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