Flipping rear arms and camber

[spannermanager]

As above, In my view flipped arms dont give that much camber reduction any way if your thinking of 'really low'... the best way is to use camber adjusters on the inner pivot, these are not cheap, and still may not give you what you want.
Also, at the build stage, its possible to reposition the inner brackets for desired camber reduction, which can give you more scope, but some knowledge and fabbing skill is required to pull it of, pun intended..