I'd check with your GM on what rules you're using for Stealth.
Or if you have money to burn (hah!), look into Light Edged Rapiers (from Martial Arts) for the fencing parry. If you have spare points (hah!) consider getting Weapon Master (Shortsword). In combat, fire it once and drop it, then go to your swords.
Get a crossbow that's too strong for you, but that can be cocked by one of the band's strongman types. You'll also want decent levels of Crossbow, Shortsword, and Fast-Draw (Sword). Buy up your Perception a bit because it's useful. If not, you want Acrobatics, Climbing, Lockpicking, Observation, Stealth, Streetwise, and Traps at 15+. Thief! at DX+2 pretty much handles everything you want to do. Nevertheless, it's an enjoyable way to spend an hour or two and it certainly doesn't pale in comparison with Western action comedies.If you're using Wildcard skills and destiny points, Thief! is a great investment. Is it John Woo's best work? Not even close. The silliness of the story means that there are no great character moments, but then again I'd say that there is enough substance here to please those that require three-dimensional characters in order to enjoy a movie. The actors are also charismatic and talented - with Chow Yun-fat once again stealing the show. I mean, it's silly beyond belief, but the action scenes, when they happen, are of the usual Woo goodness - though admittedly he doesn't bring in his A-game here. It almost feels like a silly parody of a John Woo film, except that the man himself directed it. And while this movie does have all of those, it doesn't feature them in a prominent role. When you see one of his movies you expect iron tight action scenes, grim urban settings and tough antiheroes. Initially they lean more towards the former, being master art thieves, but the influence of the latter cannot be denied. One of them a criminal overlord, one a police officer. The story going that there are these three orphans, who have two foster fathers. An action comedy, this is still Woo after all, but still a comedy. So, John Woo, one of, if not the greatest Hong Kong action director, directed a comedy.