Nikon 55-200 VR

Hi, I got this new lens (Nikon 55-200 VR). Its mainly for my upcoming Kaziranga tour in late feb. I'll have a d7000+300f4+1.4e along with this lens;

I'll mount the Nikon 55-200 VR on D5100.

As it will be my first time using this combo, directly in the safari tour, can you please provide any tips and settings required regarding this combo? (I prefer aperture mode during shooting). My main question is what should be my setting during shooting habitat modes of elephant/ rhinos at low light (feb, 6:00 am), okay light (let's say 7 am), and bright sunlight (8-8:30 am).

Thanks in advance.... :confused: