After killing the last bike, the manufacturer are going to send me a new frame, only minor issue is that the head tube is a fair bit longer. So looking at how to get the bars down. I can slam the stem but i also note that the stock headset cover is fairly big.

Does anyone know what options there are to replace the top bearing cover of an FSA headset? What is compatible? Would getting something like a hope pick and mix top section be the only option.