There is no cup – its integrated – Just bearing carts with crownrace/seal bottom and topcap & Seal top.
Just order: SHIS:IS52/40 – 1.5″ Integrated (IS) and SHIS:IS42 – 1-1/8″ Italian Integrated (ISi) Threadless
If you are convinced that the headset is CC (i.e. will fit topcap/collar and crown race then get: