Just a quick tip . . . you should never use a soldering gun for electronics. Those things are meant for plumbing. The AC voltage at the tip can fry electronic components and degauss magnets. Get an inexpensive soldering iron.
Other than that, looks a sweet project.
Artie
If it's got the sound you like, then you're done. From your sound clip comparisons, I think they sound hollow and cheap. Just my opinion. They reminded me of a cheap Asian guitar I had about 40 years ago. I think it cost $49.