You may be interested in what I did - get a T bracket for a lighting truss (there are versions that will fit onto your 132). Take off the misc. unwanted hardware and bolt the mounting bracket from your projector using the center bolt from the T bracket. I secured the bracket even further using some hose clamps and it's perfectly centered on the top of my 132!

I hope this helps - it's been working great for my use.
Greg
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