Hello Jaco,
It is an admirable goal you have in mind to accomplish and for a good cause. I helped with some of the logistical preparations for the crossing back in 2001. Kent, Neil and Fabrice made it all the way in horrific conditions. Paul passed out on the way due to dehydration and some internal organ issues, (partial renal failure?!). Oliver took out his kite tearing up an outrigger on one of the chase boats just before the start. I wrote a serial of sorts about the crossing and posted it on the egroups kitesurf forum at the time. Copies appear at:
http://www.fksa.org/showthread.php?p=41223
If you haven't looked the summaries over before, I would do so now. Then lets talk some more. The guys picked some of the worse weather for the crossing. You might be able to find more conducive conditions for your run.