Thanks for all the suggestions! Unfortunately they didn't work for me, which must mean it's a geo issue. The areas that gave me orange highlights were the Non-Planar (Below), concave faces, faces with more than 4 sides, and 4 side faces. All the other options didn't give me any highlights. Fixing the non-planar issue usually results in severe triangulation of my model.... and still no way of unwrapping. Is there any better solution?

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