I don't have much interest in the streaming side of the game but the description for the contract system tied to it vaguely mention unique rewards. Is it just re-skins of stuff you buy at shops or is there items only available in that aspect of the game? I have seen some posts mention bot parts are also available at higher contract tiers but non specify quality or type of part. With unaccepted contracts giving negative rep when they expire should I start contracting before I lose the chance or can I get an equivalent item through the other game systems?