I might be able to help with some of your questions.
I had an '07 Kodiak .
The #1 is I believe your cable connection. #2 is your fresh water tank filler and #3 is for your city water.
I can't help with the second picture.
The third picture is for your sewer hose as I assume there is no square bumper storage like my old Kodiak.
Good luck with your purchase.