Dash disassembly question

Hey guys, just wondering if anybody knows a couple things about dash disassembly...
1) does the dash itself (not the bezels around stereo, vents, speedo or glove box) but the actual dash come in multiple pieces (ie. lower right, lower left, center, upper etc.) I'm looking for 2011-2014 specifically.

2)Does a newer model (2012-2014) dash fit into a 2008 (I know some of the bezel sizes changed but the cab/dash as a whole seems pretty similar) I do know some of the bezel sizes changed.

3) Does the vent/center bezel from a 2012 fit into existing 2008, if so is it pretty basic (minor mod or plug n play?or is it sucky, as in a bunch of mods or new dash are needed?).

What I'm trying to do is swap the climate controls from a 2012 to my 2008. The sizes differ slightly but I'm thinking swapping the bezel takes care of that problem? The other thing I'm doing is adding heated seats and would like it to look as factory as possible with roller switches etc so I'd like to have them under the climate control and not have to do much (if any) cutting so I'd like to add the lower dash from a 2012 as well. I'm sure I'll think of more, please feel free to add anything helpful, I'm sure I'm not the only one wondering.

 

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