I am in the exact same boat as you. I love so many of the little features of the SE, but wanted an SR5 for the third row seat. So I'm slowly transforming it. That scoop is such an expensive and nonfunctional piece, but damn if it doesn't add that extra oomf!
Oh, one other thing- as someone who just purchased another OEM part (not for decoration, needed to replace something), I can say I hate the ebay/OEM route. You get what you pay for. I have no idea how much a new hood from Toyota is, but there is no way I'm adding an OEM one- the last thing I need is rattling or a less than perfect fit on that!