On the seats... On my '03, the tracks unbolt AND if you get another passenger side seat, the 40 part of the 60/40, you can bolt the driver's track back on and have a set of bucket seats.
The pans under the seats have holes on both side and will work on either side of the truck.
The 60 part of the 60/40 has a frame that unbolted so there is no cutting and fixing of the seat covers.
The cntr console needs to come off first, then the back of the seat, then the frame and track can be remove.
Also, IMHO, the shorty center console is the way to go, easier all the way around.