it's possible but converting auto to manual is a hell of a lot easyer TBH, auto's tend to have lots of braketry and small fiddely bit that arn't required or found on a manual.
basicly you need auto box, starter, shifter, shift cabels, pedal box, torque converter, starter ring, and kickdown cabels and brakets also likely throttel body and possobly even loom or do some loom mods