Looking for wrap around privacy curtain for class C Atlantis by Holiday Rambler

I don't know of any "wraparound" curtains for a class C - assuming you are talking about windshield and side windows. My Class C has a large folding panel that covers the inside windshield and held in pace by the visors and the side windows are held in place with magnets. I am sure  you could find those as they're popular and come with most class C's.