If you have your heart set on having a dedicated floor, there are few building in the plaza district that can provide a boutique hedge fund a dedicated floor. Floors in the tower of the building are 3,845 RSF.
The 42nd floor is available and is built with a few offices, conference room and open are with a large trading desk. There is also a high-end pantry. The Landlord is open to long and short term lease. They unit has fantastic panoramic views on 4 sides.