Antonio,
I am looking forward to watching your progress. If I see a better way of doing something I am all for it. Likewise, I hope I can offer you something of value on your build. As for the second layer planking, I did find the cyanoacrylate glue to work well for me. It bonds quick, 8 to 10 seconds, and allowed me to install the planks without pins or clamps. Based on a tip from Paul Kattner, I switched to a low odor/low bloom cyanoacrylate glue, Loctite 403 instant adhesive. Seems to be about the same medium viscosity as the Zap-A-Gap glue I was working with no allergic reactions so far. I will use the Loctite 403 for the copper cladding.