Yeah, I have them available, a few brand new from Triumph never fitted in packaging and some used in great/perfect condition with just washer/nut marks from fitment.
I just sold a new rack and a set of auxillary/fog lamps but I think I have 3 or 4 racks/ and the three part backrests with pads still available.
These are the 2012 R3T Special Edition Longhaul version that matches the rider's back rest.
I have the same Special Edition factory Longhaul dual seat with riders backrest plugged hole.
I only have the one rider's back rest left but have a special custom bracket that allows me to use it on my dual headlight Roadster with a solo seat too, either Corbin, Triumph or in my case a Black leather Russell Daylong Solo.
So will happily sell the R3T dual seat too but would have to be tempted pretty hard to sell my Triumph rider's backrest. I and others have made custom backrest that fit the factory seat with the seat post hole.
I also have a brand new 2 part US made Mustang Black Leather luxury solo bucket and matching pillion seat with studs. Heaps more R3T options etc in my shed/storage.