Re: Srt rims
^^ Agreed! As long as the rolling diameter is very similar and the bolt pattern and offset are vehicle specific, you will be fine. As for brakes...that all depends on driving habbits and added weight from the wheels. If the new rims and tires weigh more, your stopping distances will increase. I forgot the term but adding weight (i think the term is centrifigual rolling weight) on all four corners can mess up your mpg's and stopping distances BUT with larger wheels there is more rubber on the road and the potential for better handling.
With that said, there are A LOT of peeps on here with the SRT wheels/reps and no issues with their 4wd systems (someone chime in if I am off here)...and some have not done any suspension mods and don't have issues. Keep the diameter the same, ensure accurate offset and right bolt pattern and there should be no issues.