Wow, I don't think I've ever seen one of those. Is it a vintage guitar?
these were made by Matsumoku (Japan) for Epiphone 76-79 under the model SC350, SC450 and SC500 and appear to be a variation of the LP 59 double cut style body. both styles bolt on and set neck were made.
i have asked a guy that has one for sale to try and make me a body tracing before he sells his.
i don't want to hijack your thread but i am a big fan of the double cut style and after seeing your designs i thought you might be interested in a little FWIW.
i think both of your designs rock. esp number one.