No its the same turbo mate so exact same setup as you have, but with the s3 gear ( not manifold oil lines etc but the rest of the gear youd use for the k04 upgrade, my mind has totally gone blank, am trying now to find out what the s3 gear is!!!)think it may cost more than k04 conversion just because of stage 3 mapping £600 and £600 for the your turbo to be hybrided.
Would ya do it yaself, the fitting, if so shouldnt be more than £1500, for about 270 280.bhp