Despite the red sea blockade, the china rocker cover arrived a couple of days over a month. It came in a thin cardboard box that was all torn up. Miraculously, nothing was damaged or fallen out. Shopping from china was truly lolz. My £50 gamble may have paid off. There were some differences to OEM on the detail level, but looked serviceable. No marking on it apart from PA66 GF40 - nylon 66 with 40% glass fiber. This seemed to be the right kind of material for it. It came with gasket as well. So, f* the dealer and I am using the china gasket. Practically no china products (not same as the made in china carp available locally) failed for me so far, and I am hopeful it will last forever.