I am about to acquire a 89 RCSB silverado. I has no motor/trans etc. Just a rolling body and interior. I am wanting to do a 5.3 swap. Which 5.3 should I get? I need to get the entire setup right? o2 sensors, pcm, tranny, headers, etc... I know I need to get a sanden 508 compressor, new motor mounts and fuel pump. What else do I need? trans cooler? etc?