Another thought: Do you have a finish in mind? If you had something in mind (like needing to match surrounding material) then it might narrow down your material selection... Or likewise, if you picked carbon steel for ease of laser cutting, you would have trouble matching to an anodized aluminum surrounding and you'd want something that prevents corrosion like powder paint.
Assuming your still considering a a custom part, do you want help with coming up with a drawing package? It would help in getting quotes if you had a fully dimensioned detail drawing and a 3D model. I have access to good software at work and this would be a small task, pm if you like.
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