Again, I can't speak for Kevin, plus his advice is worth waiting for. However, given your skill level, size and sails, I would suggest the Futura 101 or possibly the Futura 93. Great all around freeride boards that are pretty fast.
If you experience winds on the lighter side 12 - 18 knots, then the 101 would be best.
If you experience winds on the stronger side 15 - 25 knots, then the 93 would be best.
However, the 93 better compliments your Kombat 117 if you are planning on keeping it. The 101 and 117 are a little too close to one another.
If you ask Roger on the "Windsurfing School" forum, he can provide a lot advice on board choices too.
Hope this helps.