I had a quick look under the bonnet some time back - saw a few technical looking components mounted near the inner guard - they will interfere with any outlet through the guards - could be why no-ones bothered to do anything thus far.
I like your idea - I don't think I'm going to like the $$$$$$$$
Chris, can you copy your above post into the "snorkel" chapter for easy reference. Then I'll put this reply in there too.
Thanks