Kit for making a MIDI synthesizer

I would like to know if anyone is interested in buying a kit for making a MIDI synthesizer? I have made a screw terminal board for bringing inputs to a multiplexer, connected to an arduino nano programmed to send MIDI signals out. I am thinking I can provide this as a kit with a mini-PC with Kontact loaded onto it. Would anyone here be interested in purchasing this product, or with helping to design / sell it?