Agree with the last report, any SUV should make it but I'd recommend decent tires as well as a full size size spare and tire repair kit as it >30km back to pavement. On my return a crew was installing stakes and flagging along the side of the road, I expect it may be closing to the public very soon. Large staging area has been cleared at the junction with Indian River FSR.
the Road is in relatively good shape, no need to 4x4 HC, any 4x4 can make to the gate. Note: it's not a normal locked open gate, it's wired gate that you can't even pass a backpack through