As most will know, I am a rabid Tankwa DS rider, and have been up there many a time, always scoping out the vast landscape with longing, seeing awesome riding spots in a window shopping way... a bit like walking past a bike shop with an empty wallet

Check out the Dropbox link Clive shared in the post above (hint: if you have trouble downloading it, create a free dropbox account of your own, and under options, instead of downloading it, choose "Copy to my Dropbox" - it is instand - and you then download from your personal dropbox.)
If there is one ride you should do this year, whether you are a racer, or just a proficient plastic rider, this is it, the one, the must do.
My only comment, and you can ignore if you are a hard core racer, but this can be much more than a race, you need to bring yourself and your bike and do 500km of stunning riding over 2 days - to look after yourself and your bike and finish, you will also do well in the race standings.
Consider yourselves informed, ignore at your own cost, you will be sorry.