Should be just the intake with injectors and sensors/controls.
The injectors because of the Flex fuel
The sensors and controls because of the wiring harness.
The cam synchronizer, CPS, may be a different type, so you may need to swap that as well
Might also be easier to use your existing accessories and brackets, i.e. alternator, power steering, idler pulley, ect......
That way if you ask for a 2000 ranger 3.0l belt you will get a belt that fits