OK...so made some improvements.
First, I added double layer red photo gels to the gun lights. Its easy to take them apart and access the hollow area, and cut out small circles to jam in there.
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So now I went from this ->
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to this ->
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Still not perfectly red but...close enough.
I was also getting some light bleed on the bottom of the topper ->
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So I did a quick and dirty fix, where I just taped a strip of black construction paper to the bottom to make a "skirt".
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And had it flare out the front and two small pieces of tape to hold it down.
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Completely not noticeable from the front...you can only see it from a step stool. Now no more light bleed!
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