If you want something different to the Kanile'a I wouldn't buy a Kamaka myself. Not that they're the same, but compared to the KoAloha and aNueNue it's the most similar to your Kanile'a. I also wouldn't worry about the sound of the aNueNue. Despite having a really well balanced tone, they project and sparkle so much that I'd say they sound very bright above all.The KoAloha neck shouldn't be an issue either. I prefer a satin neck as well but I've had no issues with the gloss neck and I play fairly fast paced music, moving my fretting hand up and down the neck with pace. No problems whatsoever.
I know the Kamaka history is tempting. I plan to own a Kamaka one day myself but that day will come when the time is right (and when I can find one without paying through the nose for it). I would go for the KoAloha or aNueNue simply because of how different both of them are to the Kanile'a and Kamaka. I also want to add that, in my opinion, the build quality on the aNueNue is better than the KoAloha, on par with Kanile'a.
I know the Kamaka history is tempting. I plan to own a Kamaka one day myself but that day will come when the time is right (and when I can find one without paying through the nose for it). I would go for the KoAloha or aNueNue simply because of how different both of them are to the Kanile'a and Kamaka. I also want to add that, in my opinion, the build quality on the aNueNue is better than the KoAloha, on par with Kanile'a.