Looking to buy Thule roof rack

Looking to get a used Thule roof rack. Either a set of 480 Traverse mounts (with 50" square bars if possible) or a set of 480r Rapid Traverse mounts (with 47" aeroblade bars if possible).

I want to start kayak diving (not sure if I can buy because of storage problems, but will borrow/rent sometimes if I can't just buy one) and need a way to get it around. I already have the Thule fit kit for my car and am just looking for cheaper options than buying the rest of the rack new.