As for cladding, there are not many sources other than personal people selling from damaged trucks, Rockford Racecraft selling OEM cladding, or Paul's Select selling fiberglass.
I personally was toying around with the idea of CF cladding, but part of the reason for the CF is keeping it bare. Keeping it bare means it must look good. For getting CF sheeting to lay down giving you a uniform look would be a difficult challenge with all the bends and contours of our cladding. I'm sure it's possible, but NOT very easy.
CF tailgates would be easier, especially for the Typhoons, but I'm not aware of anyone that makes one.
For fenders, I'm only aware of fiberglass myself, but again, anything is possible. I'm just not sure anyone has tackled it for SyTy's.
Either way you go, good luck.