Great price but you still need a pair of these Rear Fender Trim Kit A9758075 even if you never fit a pillion pad. See they are indented to fit the sissy bar side plates,
otherwise you may need to remove or cut down your exiting ones.
Price: US $49.99
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Price: US $55.00
Triumph Rocket III Touring Rear Fender Trim Kit - A9758075 | eBay
QUICK RELEASE SISSY BAR - CHROME A9758067
Lockable, supplied with 2 keys
Requires Rear Fender Trim Kit A9758075 and Sissy Bar Back Rest Pad
LONGHAUL BACKREST PAD - PILLION A9708159 For use with Quick Release Sissy Bar A9758067
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The Deluxe Longhaul version of the pillion pad cost nearly Au$200 when last available.
Longhaul Passenger Backrest Pad Kit - Triumph ROCKET III TOURING | Triumph ROCKET III TOURING Longhaul Passenger Backrest Pad Kit supplied next day (UK only) by Fowlers Parts
This US seller CrossCountry Cycle still lists them for a US$100 but I would not think they can deliver. worth a try.
A9708159 - Triumph Longhaul Pass. Backrest Pad Kit. Special Edition Only > 541308 | Cross Country Cycle, Metuchen NJ
and another same $100
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Bike Bandit list for a silly $38 price but you can be sure they cannot deliver.