This should really be in the 'parts wanted' section, but ho-hum.
To save you wasting time on the phone chasing seats that are wrong you need Squash Grey seats (Fiat code 260) from a 2001 on Sporting or (genuine) Schumacher model.
The S & SX models had different interiors.
Used to be lots of breakers near Dartford but it's been years since I lived in the SE.