FVD rear brake adapter kit?

[19000rpm]

I have been looking around the web for info on swapping over base 986 rears to S rears. This kit allows the fitment of S model brake shoes correct? What is required to make this kit work? S model calipers, rotors, pads, emergency brake shoes? Are any other ebrake parts required other then shoes? I noticed what looks like a large backing plate shim, and two other smaller square pieces I haven’t figured out yet. From other posts on the forum I am starting to think that the small square piece are to shim the originally base caliper to use with the larger diameter S model rotor. The rotor for the S model is wider so I’m not seeing how this is possible unless you get S model calipers or use thinner brake pads.

Any help would be greatly appreciated!