I like the Scout idea. Losing Uncanny Dodge and Improved Uncanny Dodge for more sneak attacks is probably a good tradeoff. Opening with a charge + sneak attack, then subsequent rounds 5 foot step + full-attack. The 10 ft movement + sneak attack with the whip's 15 ft range isn't bad but prevents full-attacks so I wouldn't use it as much but I can see cases where it's be nice.
I'm not too sure about the Lore Warden though. Armor Training 1 gives me full speed with a medium armor, which allows acrobatics to work. And a Mithral Medium Armor makes Evasion and Improved Evasion work too. You are basically trading that for knowledge skills, +2 CMB/CMD and Combat Expertise, a requirement for Improved Feint and Improved Dirty Tricks. I really considered maneuvers but they usually prevent full-attacks so I changed my mind.
Your build is definitely more stealthy/skill-based so I can see why Shadowdancer is interesting for you (hide in plain sight, darkvision, uncanny dodge take 2). I have a more "brute force" approach so stealth isn't on my skill set.
Thanks though, I'll reuse the Scout for sure!