Is your truck an extended cab or a single cab? You've gotta get the seats out of a similar set up truck with the same floor bolt pattern for the seat track if you want to keep it simple. If you've got an extended cab, Explorer seats will bolt right up but you'll need to enlarge the holes on the seat track to fit the Ranger bolts to secure the seat down. Wiring them up is easy if you get power seats, its two wires per seat then you have full power. If you're looking for leather power seats, try to find a set that has manual lumbar support over the airbag type because the bags tend to rip over time, especially if you use the feature a lot. Mine are full power except the lumbar support and the reclining part which is perfect for an extended cab.
2004 Vermillion Red 4.0 4x4
3" Body Lift
2" Tuff Country AAL
33x12.5R15 BF Goodrich Mud Terrain KM2 on 15x10 Mickey Thompson Sidebiter II
& lots more