Shock Gloves/Hands do Electric Damage (Lowering Initiative), Have -5AP, and only need to touch to do any damage. Bone Lacing turns all your Unarmed Attacks into Physical Damage. (Which I don't like)
Funny thing.. My main player is a troll with Titanium Bone Lacing, and we were trying to figure out if he can even hit someone WITHOUT killing them. :-)
With Katana, after successful hit, character can execute Finishing Move, which is probably one of the best Martial Art Maneuvers imho.
Yah.. don't use MA moves because they are overpowered (IMO) for example.. Finishing move.

I understand what you're saying about Duplicate Skills, and if I was making this character using priority, I wouldn't have as many skills as I do, but with Karma Gen, it's a little easier to have more skills, albeit at a generally lower rating.
Thanks for the Detailed reply btw.
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You sill might want to combine Auto and Pistol. If you are going to be using Unarmed and Katana in close quarters, Machine Pistols are probably going to do the little shooting you might do at range when you aren't carrying an Assault Rifle. Another option is Longarms which gives you Shotguns which are simply brutal at short to medium range.