Rewire to what extent? Are you going to remove the interior skin or are you just working at the fixtures?
There is no way you can replace the wiring in the walls without removing the skin. If you are removing the skin make a drawing of the wiring that is there and replace it in kind. If you do not have all the colors to work with consider getting a booklet of wire markers from any electrical supply house and tagging both ends, at the fuse panel and at the fixtures that that wire serves, of each wire as you install them.
Give us some more info as to where you are headed.
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles