Very cool project! Of the many games I’ve sold over the years, BSD is about the only one I’d like to get again
For your missing assemblies, Kerry Stair just announced he’s reproducing all the weldments for this game just a couple days ago.
Also I believe Mirco is making the playfield now, and I’ve seen cabinet decals available on eBay. Once you have the mist driver parts, most of the other stuff is hopefully standard wpc.