pollybushings.com sells swaybars (front and rear) along with solid bushings and motor mounts
kmperformance does headporting, intake porting, solid rear mount.
turbosunleashed has your clutches
fwdperformance has some suspension stuff but good stuff is hard to come by.. kyb gas adjust in the rear and try this on the front
you said you want to go twin turbo? single is easier for various reasons. kmperformance has two options for a turbo manifold. You cold actually run both of his options and do twin turbo.
Also have to think about tuning.. i run megasquirt 2 if you didnt catch that.