Here is a couple of photos of mine. I just trimmed back the front of the fan a little. The exhaust stacks are from a Highliner kit.
Thanks - I agree, I have the same part and I was tinkering after I posted the question and you really don't have to remove the full fan.
Now that I have an Atlas FP7 I would like to know how to safely remove one of the fans molded on the top of the model so as to add a Canadian style winterization hatch. Any advice?