GLOBAL MARKETS-Asian stocks choppy as commodities catch breath after rally, yen in focus

* Gold rebounds from stumble after crossing $4,000 mark S&P futures stabilise after declines on Thursday China expands restrictions on sales of rare earths By Gregor Stuart Hunter SINGAPORE, Oct 10 (Reuters) – Asian stocks limped towards the end of the week on a shaky footing on Friday as declines on Wall Street lingered into early trading, while commodity markets took a breather after their recent charge higher. Regional markets remain on track for one of their best years in a decade, firmly outstripping gains for U.S. counterparts as President Donald Trump's package of economic policies and tariffs prompts a surge of orders across the region to meet booming demand for AI-linked technology hardware. The U.S. trading session marked the point where a number of "well-subscribed, high-momentu