I was thinking about making my own customized mobo tray/system tray for a HTPC case, but my design will be a bit intricate, and probably need alot of welding. However, I am not a welder, nor do I have equipment for welding. How would it be to fabricate the parts out of copper sheets and copper tubes, which I then solder together using either a soldering iron or a blowtorch? Would it be strong enough to withstand normal use? Does anybody have any examples of things made in copper and soldered together? I have seen turpijas home-made watercooling project log, which is quite impressive.