This is Jamie from SynthGraphics.com. I do sell BCR-2000 overlays for the microKORG, Mopho/Tetra, Chroma, and Alpha Juno line. So I have templates. Dave Hobson contacted me about a solution and will look into what options are available.
My current products are not actually vinyl, they are 10 mil lexan (extremely tough stuff!) with the printing done on the back side of the lexan - but does no allow dry markers to be used on them and they have a 3M sticky back that makes them permanent. My original plan was using a magnetic backing but the BCR is aluminum so that won't work.
I can do custom graphics but would be cost prohibitive - in the $100 range per overlay (my time plus supplies). If someone wanted this option you could send me what part you want labeled as what, colors, and I could do that - but you'll need to program the BCR yourself. I'll also look into blank overlay solutions with no sticky back.
Cheers,
Jamie