So, I've done it! Here are the photos of the process: https://photos.app.goo.gl/EagXGQdsrEAcMiyo6 Ended up putting 5mm of wallnut on top. A bit heavy, but nice and local wood! Gift from a carpenter friend. Put some cherry veneer on the back. Shaved around 600g, without changing tuners. Still balances well! It has a really massive bridge (300g)... So, satisfied on that front. Super happy with the top finish, the sides (basswood) are a bit ugly and I messed up cosmetically on some points. But, for first try, pretty good! Thanks everyone for the suggestions and help!