These are all likely ingredient options you will find in the store that sent you to this website. The squid ink linguine is a great option for this dish although the White Linguine from Marella or Gentile are both excellent choices also. The Bomba Cherry Pepper Paste is a fantastic substitute fro pepper flakes as the flesh of the cherry peppers adds a depth to any dish that requires a additional heat. Even the small capers are huge in comparison to what you normally see in stores. I chop them up when I use them. The extra large are the size of your thumb. They are really good fried in EVOO and served as an appetizer.