The off-set/back-spacing on those wheels will be just fine for an '05+ ride.
As for centercaps, this can be a little tricky. The hole in the wheel will dictate the diameter of the cap as well as fitment. That is to say, the cap the wheel comes with is going to NEED to be reinstalled, in nearly all cases. You will very likely be able to purchase other caps and peel the face off and glue them onto the caps of your new wheels. I did this with mine and are just fine.
Jazzer
