well i can confirm a few things about series 2 manual stageas.
the rear sway bar is a 24mm hollow (vs 19mm auto)
the rear shocks have a forked bottom (vs eye auto)
i think the front swaybar is larger than the auto (but i need to find it in the garage)
almost certainly, from talking to SK, the manual is made up from the R33 GTR parts bin.
i think cruisey is spot on.