Neat idea!
I'll try to stick to OEM+ parts as well, here's what I've got so far:
the tiny brown box is a TRD oil filter, the tiny white box contains the TRD Oil filler cap.
plus a TRD front strut tower bar, battery clamp and the TRD/Momo steering wheel.
here's my humble build thread:
http://www.ft86club.com/forums/showthread.php?t=36716