Re: Need a rod recommendation...
Not sure if they still make it, but Scott used to make a 6' 3wt in their voyager series that was a sweet little rod for the kind of thing you're looking for. That series has been reincarnated as the V2.
A still shorter rod will work better for normal casting in heavy brush, But remember that roll casting can work best of all, and I doubt a 4.5' rod will do that very well, unless you incorporate the tomahawk chop as well. (incorporating your whole arm into a roll cast inorder to extend the functional length of the rod by the length of the rod)