New 2007 SR5- Tuning to Offroad?

So I just recieved a new 2007 Tacoma but one (slight) problem exists: it's SR5 instead of the TRD Offroad (mix up in communication with parents; we went ahead and paid it all off and I paid half of that). Now this isn't anything huge, because I have a lot of money (that's my own) to tune it with. I was just wondering exactly how close to the Offroad I can tune this thing? From what I hear shock absorbers and the foglights amoungst other things will be tough to upgrade if I can even upgrade those.

Depends on what kind of wheeling you want to do.