MILAN (Reuters) – Italian luxury yacht maker Ferretti is aiming to list in Hong Kong at the end of March through an initial public offering that could be worth between $400 million and $500 million, three people close to the matter said on Wednesday. The group, which is controlled by Chinese conglomerate Weichai Group, is targeting a free float of around 25%, two of the people added. Ferretti is currently meeting investors in Europe and Asia, looking also for cornerstone investors, the two people said. The deal may yet face headwinds as equity markets across the world are disrupted by geopolit…