Even for 6.1/7.1, the Dolby website recommends that the side surrounds be between 90 and 110 degrees. That's not really in front of the ears, but whatever sounds best.
And they say, "Our recommended height for the surrounds is above ear level, as soundtracks are likely to be optimized for that location," but it says nothing about how high above ear level. Various websites around the 'net recommends anywhere between 1 and 3 feet. If a few inches works for you, great, but I wonder if that would make them a little too easy to localize.
cheers,
supervij