* Hopes to play Presidents Cup in South Korea
* Day continues fine form to share lead
* Halfway leader Bubba slips one behind (Adds quotes, details, recasts)
EDISON, New Jersey, Aug 29 (Reuters) - Bae Sang-moon will soon be making about $130 per month in the South Korean military, but he is making the most of his remaining time on the PGA Tour with a rousing performance at The Barclays on Saturday.
Bae fired a seven-under-par 63 to share the third-round lead with PGA Championship winner Jason Day of Australia in the opening event of the four-tournament FedExCup playoffs, which pay the overall winner a $10 million prize.