Take katanas, and get the
bonus edition merchants if you haven't already. This gives you Dakkon's Zerth Blade, awesome for k/ms.
The optimal lvl in SoA would be 9, that way you can hit 17 in mage.
IMPORTANT: While you're still a kensai SAVE ALL THE SCROLLS YOU CAN. You can get three scroll cases at the scroll merchant at Waukeen's Promenade, the woman at the adventurer's mart, and the Copper Coronet. That way when you dual, you can gain xp quick. Also, check out the k/m guide at Gamebanshee.com, I don't know what's up with it though, I can't get it on my IE. Oh well.