T04E 50 trim with the smallest turbine housing you can find....maybe a .55 ar or .63. I would hate to cheap out on a turbo build though, lol. You have a compressor wheel come apart and spit metal fragments into the intake and you can kiss the motor goodbye! I would look to Garrett or Bullseye for a turbo. Honestly $900-1000 is pretty cheap for a good quality turbo! You might be able to get a Garrett for $550-600. But then you are only $300 or so away from a S256 at that point.