There are no schematics or blueprints of the structural members nor is there any wiring diagram available for any Keystone product. Essentially, the outer walls are either wood or aluminum depending on the model and brand. The interior walls are usually wood. All of the wall framing is "computer generated" and does not follow a 16" or 24" on center concept. The easiest way to hang items is with 3M command strips or with small wood screws. Realize that a stud finder will work to locate the studs but make sure the screws you use are short enough not to go all the way through the wall to the other side. This is especially important on exterior walls.
Another member just asked the same question. You can find that discussion here:
http://www.keystonerv.org/forums/sho...ighlight=towel