8 backers out of a hoped for 200 on the last go around, I think they may have given up, unless for some reason they just wanted to make some as a personal project. A friend manages a place that vacuum forms motorcycle fenders, it’s this whole crazy industrial operation, and the forms are undoubtedly expensive to have machined, so you’d need to get the money back in quantity.
If you are handy, or well heeled, I think you could have a custom acrylic one machined out of flat sheets of acrylic, there is special glue for chemically joining the pieces together. They make terrariums and custom store displays that way. Plastic places also have special heating elements that can soften a stripe of the acrylic and then you can bend an edge like sheet metal.
I think I’m going to try to sew a cover, that will stay on when the synth is tilted up, but will still let the cables out the top. If that sees the light of day I’ll try to post a pattern here.