No corporate hotel chain (Marriot, Hilton, Hyatt) has you sharing a toilet with others. All of these hotels have locations in Manhattan either midtown or FiDi that are around $250 for April 3-5th. If OP’s company is quite large, it’s possible they also have a corporate discount to use. There are at least 20+ choices between the big three chains and other places like Yotel or The New Yorker.

If you’re paying $500 a night, you’re paying for luxury. Maybe OP can afford luxury with his NYC salary but he only needs about $500 weekly.