Add extra upfitters, whos done it?

I am thinking about adding another upfitter assembly to the truck for some more switches. I know people have done this, so I had some questions. I have the PN for the assembly and the pig tail? what else am I missing? also anyone have a diagram for the wiring of everything? This is something I would like to do, but would like some more info before I dive into it.

Thanks

Edit: Did a search and found some info. Not sure I want to really mess with that right now

Here's some links of 3 defferent set-up's

http://www.fordraptorforum.com/f10/cleanest-2nd-aux-switch-pack-install-yet-26213/

http://www.fordraptorforum.com/f81/extra-aux-switches-anyone-24065/

http://www.fordraptorforum.com/f170/%A1m%E1s-factory-upfitters-easy-access-wiring-30527/