Debate over the deal’s feasibility has polarised investment bankers. : New York: Tesla Inc Chief Executive Elon Musk’s contemplated $72 billion take-private deal is presenting investments bankers with a dilemma: overlook concerns about how feasible it is or risk missing out on what could be this year’s biggest and most high-profile acquisition. Musk did not just catch investors and analysts off guard earlier this month by announcing on Twitter he was considering taking the US electric car maker private. He also sent shockwaves throughout the investment banking world, which reacted to the news with both excitement and bewilderment.