I have a Sherline so I do have the equipment. I wasn't sure about if it was done cnc or not. I'm guessing you drew it out and simply set the start and end points and made the cut. I've made a few brass chassis before and getting the sides even is nearly impossible.
That's a project I need to try.
Final question and/or, I'm guessing Harrisburg, PA. I hope you'll post shows you're exhibiting at.