Wrong forum category.
Also, regardless of MS and Xbox trademark expirations, IIRC correctly, obtaining the kit used in UC2 still infringes Epic Games’ copyright regarding Unreal Engine 2X, at least if you plan to re-use it for game dev purposes.
If you are really desperate to find it for abandonware’s sake, try the Internet Archive. You’re unlikely to find much help here. Forums is mostly a ghost town.