You could probably do that with a zen monk (from the Martial Arts Companion). They have a combination of combat-enhancing, movement-enhancing, and sense-enhancing spells which doesn't perfectly cover the stealth aspect but at least complements it.
I also did a conversion of the Nightblade which is in the vault. Although I'm not sure what's going on with the vault right now.
I don't know of any options which are not martial-arts based, though. A three-way hybrid profession is pretty tough. I would think Magent would cover it, just pick your stats and skills to emphasize combat a bit more.