Hello, line 1 on the body and paint plates show any the body-assembly related option codes, i would have thought if your car originally came with a 5 speed box, it would show code 230 on line 1
Your plate does not have any body related codes, so seems to have been supplied with a standard manual box
EDIT - Actually, after reading more about this subject, it seems the transmission code may not have been stamped on the body and paint plate, perhaps someone with an original 5 speed car could confirm
Your data card will confirm if you get hold of one