dual electric fan mounting question ?

well I work on it most the day and this is what I ended up with. I would have liked to have given it more taper and that does make sense but again like some of posted there's not all that much room to do that. Plus I consider myself a decent amateur fabricator, but I don't have that large of a arsenal to make really custom things. I.e. I do what I can with what I have.I've seen some of these with flaps in the areas that allow air to cut through when in motion and close to let the air go through the fans when at a stop. I'll go there if I have to. I wish I knew what the CFM was, but they're both 12 inch fans and seem to draw very well. again I was told by the member that I got them from they came off of a 440 Motorhome. Well here we go a picture is worth a thousand words tell me what you think?View attachment 20150210_172858.jpg

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