For rack, I would recommend the rage brand, they have various sizes and models based on what you like. Can be found on Ebay, 100ish
Sliders-rocky road or can buy some generics and fit em to yours. There is another brand that are weld on, Billy has em (triathelete, I think they were stricnine (Spelling) or something like that)
Winch bumper, you are on your own, no aftermarket produced.
Skid plates, maybe Kilby if they are still available
Tie rods and whatnot, Indy4x.
Good luck, especially on the S/C.