I am wondering, where did you get this precious busbars? Google has no clue about something like this ever existed.
Made them myself, and went heavy on the silver and gold plating as i didn't use nickel on top of copper. Saw no such item (of such wuality) on the market, so decided to make it.
Do you have access to industrial electroplating equipment and appropriate solutions like silver cyanide? Not sure how one pulls this off on a diy basis.
Fairly common here, and obtainable as civilian, but as i wanted it to be perfect, in my neighbourhood i have company that strictly does silver/gold plating, on a larger scale but they like audio, so they do the job by my spec, and in small quantities. I visit them with my new shenanigans every so often, always a good talk, good people. (They also do services for a really high end audio gear manufacturer, but cannot disclose).
You can use industrial connectors in place of binding posts.
Then you are not restricted at all about sources.
Spring loaded and screw fastened connectors are made in a mind boggling variety.
The basic purpose of the binding post is removable wires, easy to connect and remove.... a screwdriver is quite common.
Just search for 'industrial wire terminals', then refine it to EU suppliers.
That photo is a random net image, no links to supplier.
Then you are not restricted at all about sources.
Spring loaded and screw fastened connectors are made in a mind boggling variety.
The basic purpose of the binding post is removable wires, easy to connect and remove.... a screwdriver is quite common.
Just search for 'industrial wire terminals', then refine it to EU suppliers.
That photo is a random net image, no links to supplier.