you know....a motor is just the 2.0l fs-de. you can find those pretty easily. As for a turbo, You most likely will not find a motor with one attached...you could find just a turbo itself, since you have an exhaust manifold, piping, etc...does your turbo have shaft play and all that?
yeah it's any 2.0l fs-de protege motor. Unfortunately you probably wont find a turbo on one at a junkyard because as far as i know there are not many if any mazdaspeeds that have been junked. You're better off searching forums.