Congratz and welcome.
Wheels: Totally up to you
Front lip:
I got mine off of ebay . Depends if you want real CF or Not.
Spoiler: I got mine for
JBSpeed. They have plenty of other styles as well.
Edit: get painted side tirm (get rid of the ugly yellow/orange side markers on the front bumper). And also you can get color match fender and rear bumper trim.