Chris,
I purchased the parts at my local dealership so I probably paid too much but here are the results:
5JW-W0754-71-01 TRUNK BLK CHERRY 503.99
5JW-W0772-00-00 BACKREST PAD 109.95
5VS-PLATE-KT-00 REINFORC PLATE 104.35
I will post pics along the way as I install the parts...