i orderd a complete TB rebuild kit from STM i think total it was 40 or so, new shaft seals, new biss screw , o ring, biss screw cap and tb gaskets..
the whole process isnt bad, just mark where your spring was with a sharpie be
for taking it apart, also the butterfly that thing is a pain in the ass to get lined up just right so it stays open make sure you mark what side is what and put an arrow facing up so you don't put it in upside down..
Jesse