You were told a pack of lies. FDE does have the Media box, but loses 1 HDMI and the VGA input. It also has fewer features than the XDE but I'd urge you to search for the other threads that go into detail.
You could lean it against the wall at an angle I suppose
As mentioned it comes with speakers and stand, you could always Ebay the stuff you don't want. (A wall bracket is 60 quid from RS100).