the interesting thing is if you go through the menus White goods / by brand etc you get the £70 boot
if you just type the model number in you get another one and a non gen GSK9398
cant say if it will fit but its interesting. Have not got access to Amica part numbers any more ( just seen Murv gave you a part no thats the expensive one )
try ringing Amica direct their prices are not bad. got a whole cooker door of them last year for £65