For the 5L, 2.3L, and 1UZ swaps: engine, harness, and ECU, junkyard T56 (or C4/6), fab up an in-tank fuel pump bracket, EDIS setup, aluminum fuel line and some -AN fittings. Fab up motor mounts and exhaust.
-or-
Keep the 351W, get an EFI intake and EDIS-8 setup and run Megasquirt. You'll...