All the bits needed for a 6 speed conversion including the following

2004 st170 gearbox on 28k miles, excellent condition
from the same car I have
both driveshafts
linkage including gaitor and cables
crank position sensor
nearly new luk clutch (1500 miles) comes with the hydraulic release bearing too
gearbox to engine spacer plates
gearbox mount
starter motor and wiring

you will not find a more complete setup

£300 ono