See if there are any model RR groups or clubs in your area. Many of have and use something like a Silhouette CAMEO 3 (Ultimate DYI Cutting Machine) to cut parts for their model buildings. I've bartered photographing their model train setup for some minor machining in the past. Also consider using thin black plastic instead of metal... lot easier to cut and in either case you will be most likely spraying the Waterhouse stops flat black.
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