Oil cooler - same as a gti.
turbo oil feed pipe
oil pipes (all of the rubber ones)
oil filter - mann filter from GSF don't bodge with a gasser one.
front engine mount - usual Mk2 hydraulic mount, fleabay?
any retaining clips needed on oil/water pipes
Radiator
top rad hose
bottom rad hose
any other rubber water hoses
thermostat
in-line water pump - also used on some VR6's
belt driven water pump
header tank - most late mk2's have something similar.
Here is a good link for cross referencing bits, Later Mk2 GTD engine codes are RA and SB.
http://www.vagcat.com/Some late Mk2 passats also used these motors.
Happy Hunting.