@Tekkelenburg
There's quite a few advantages to going with aluminum over stainless. Aluminum rings out a bit better than stainless, stainless is nearly 6 times the cost of aluminum, 6061-t6 (which is what I'm using) is plenty strong enough for this, if it's strong enough for an airplane it's strong enough for me, aluminum is much nicer to cut and I don't have to waiste near as much on tooling as if I was running stainless, aluminum can be anodized so I can pretty much make any color bridge I want, I know I could powdercoat stainless but it would be quite hard with the saddles and the tight tolerances I have to hold to fit them in the bridge, aluminum is able to hold an amazing polish
i do plan on making some out of brass and bell bronze but I can't see the point on making them out of stainless.