EMS powered carries some widebody fenders and lightweight fiberglass doors.
Body Styling & Exterior : EMSPowered, High Quality, Great Service, Low Prices
import syndicate, the source for MR2 MKII-tuning has pictures of just about every body kit ever made for the SW20 and if thats not enough go to the Show Off forum and check there.
You'll be lucky to find an authentic TRD widebody kit, but replicas are everywhere if you Google it. You can get the fender flares for the "Abflug MR2", they are actually the R33 Skyline flares. Check out this thread:
Abflug arches?