Awesome build, really enjoying this on my new Shadow Warrior, up to 50 at the moment.
My take on it was ever so slightly different though as I didn't want to pick up skills for the sake of, or take things like Blacksmith which are bugged on the console. So I've opted to change a few things out and make decisions based on my play experience (still levelling so am pretty much making it up as I go along but liking how it's developing), here's what I've done to date (order is a bit messy in hindsight but can be reshuffled to suit):
2) Astral Lord Lore (Increased every level after getting sufficient skill points to catch it up to Focus)
3) Astral Lord Focus (Increased every level)
5) Concentration (Increase every level after getting sufficient skill points to catch it up to Focus & Lore)
8) Tactics (5pts for Dual-Wield access then stopped till later when I'll take it to mastery)
12) Combat Discipline (mastery eventually but not training at the moment)
18) Ancient Magic (Mastery eventually but only getting 1pt out of my 5 at 50 right now)
25) Armour Lore (not training at the moment)
35) Malevolent Champion Focus (idea was to get 2-3 modification points for Augmenting Guidon here)
50) Dual-Wield (only the initial 1pt to equip two weapons so far)
65) Not sure yet
So... I'm using Skeletal Fortification as per the initial build but have also made extensive use of Spectral Hand (after Shadow Veil hit 25 and I could cast w/o being made visible), both combat arts have been added in to Combos from Combat Discipline for the 10% recharge boost, I've also set up one for Belligerant Vault just becase, and my fourth is Rousing Command, Augmenting Guidon, Skeletal Forticiation (this is because my main SF recharges in 19secs at it's current level and this combo takes a full 60s but is well worth it when it's up). Both SF Combos can be used independently of each other.
I've modded Augmenting Guidon for +50% ATK/DEF and +10% experience, Rousing Command for +50% DUR and +15% RUN SPD (in hindsight +10% ATK/CAST SPD would've worked better with Dual-Wield and Spectral Hand) and Skeletal Fort as per Podgie's build. The idea behind this is that my second SF combo increases the damage output and the experience gain; which leads me on to gear.
For my armour I jumped on my level 6 shopper (level 90 bargaining and glitched in to Niob for better gear) and bought various SW armour with things like +experience and run speed on them, as Podgie said the armour doesn't matter much as you're invisible but I've gradually equipped set items and better gear with sockets as they've dropped, these sockets have all been given to my Niob smither to drop Whet smithing arts in (+DMG +ATK) and I've been using that in every socket bar two as the damage percentage raises both the damage output of my SF turrets and the damage of Spectral Hand significantly. The last two items, and the whole reasoning behind my taking Dual-Wield, are two Officer's Sabres (those nifty ones that drop around 50 with three gold sockets on them and the Survival Increase bonus) which I've used 1 socket on each for a +1.0s RPH ring (this rounds up a bit higher than 1.0 when Niob smithed in a gold socket) and the other two sockets on each with Whet again - one Sabre is socketed for fire damage the other ice. I've got a ridiculous amount of +DMG/ATK% and it pays off in that Spectral Hand is basing it's damage off of my Dual-Wielded sabres as the base which is higher than a single weapon, then is further boosted by all the damage bonuses along with Skeletal Fortification.
As a test of just how much damage I could put out on him I jumped my SW over to Niob (same glitch method) at level 48 (prior to dual-wielding) and started to do the campaign to see if I was able to kill the enemies at that point and could progress. Answer was that I could, quite comfortably although damage-wise I'd compare him at that point before dual-wield and the sabre trick to a new character starting out on Silver; it took a few hits to drop things instead of running about one shotting everything as I'd grown used to.
So that's my set up if anyone feels like playing about with it or developing further.