I have never seen one myself, but it seems to me that one would simply just invert the rite in its form and its intention. The intention being opposite, which is to banish the Light and invoke the Darkness.
I recall vaguely reading in a GD document (or maybe just Regardie) that if one thought it necessary to call a demon without causing it distress then you would use a reversed pentagram. Following this, then one could replace the upright elemental pentagrams with upside down ones, tracing the lines with with Spirit on the bottom. I also recall that LaVey called devils at the four quarters (Lucifer, Belial, Satan, Leviathan?), though without tracing figures (and you need a reclined naked woman for an altar). You could try that, or perhaps do the normal divine (YHVH, Adonai, etc) names in reverse - although these themselves are of a more "normal" Kabbalistic permutation value and not necessarily "LHP" as it is understood today. For the Arch Demons one could refer to the Sephirothic counterparts in the Qlippoth (like Samael, Lilith - pick the best fit for each direction). I don't have the GD/Crowley/Grant rooted "Tree of Death" at hand, but it would be a fair start.
For the QC you could do it as an inverted cross. I am reminded of the recital of the Lord's Prayer done backwards, which I believe was first attributed to the trial of Urban Grandier as evidence against him - though I could be wrong, or the source was wrong.
