Ditto on what LJAZ said... You can contact CruiserRV and they will supply framing details. I got a complete set of framing prints for my 210WBS, but, they would not release any electrical or plumbing schematics. My best guess is that the factory has a rough blueprint, but, the actual finished product is a "this is close enough" type deal and if they provided schematics that didn't match the finished product there could be problems if a DIY project shorted out the whole shebang.
My 2 cents, your mileage may vary...
2 Cats; J-Lo and Ragamuffin :R
2014 Thor Tuscany 40RX DP
2011 Ram 2500 Longhorn CTD HO
2011 Keystone Cougar 318SAB (now gone)
2008 FunFinder X 210WBS (Sadly gone)