Based on the general background, it does sound interesting.
I'd just ditch the whole Skywalker bit and let someone with no ties to the Skywhiners save the galaxy this time around. Maybe it's something in the Y chromosome of the Skywalker clan that leads to most of the men being emo-candidates (especially Cade from what I've heard, including his threatening suicide). Leia never had that problem, and apparantly neither did Jaina. I think Anakin Solo inherited his dad's Y chromosome, thus explaining why he was more of a doer instead of a complainer.
Heck, if using this as a campaign, maybe have Darth Krayt be a Skywalker that's decided to taken an extended bathroom break on Luke's legacy.