Definitive Guide to Cam Swap Prius C

Hello there . I own a 2019 Prius C and I'm willing to go forward for a cam swap to 1NZ-FE cams . I know there are several thread here that highlights the process but the final answers remain unclear to me while i did read it over and over again .
I need a definitive walkthrough the process , what are the prerequisites ,what added parts i need to include, do i need to change both cams , valves and valve spring . This is especially for those who did the cam swap .