Thank you Michael for your response.
I have a Canon 7d and a 100-400 lens already. I may just take that along with my Sony 6000 24-240 lens and call it good.
I was just hoping to have a lighter camera with a good lens with fast AF since I will be having 2 on me. I really like the Sony being light weight.
The Canon 100-400 lens has pretty good AF but I find I have to fine tune it manually.
I did try to rent a 1x4 extender for my 7d and that lens but found out it did not auto focus with that camera.
Maybe I should rent a Canon camera body that will AF with an extender for my 100-400 lens? If so, what would you recommend?
Love your photos by the way! I can't wait for my trip and hope to get some great shots!