No idea although all blocks have to use the same holes on the actual card. The Bykski block for my Gigabyte RTX3070 Vision OC came with it's own black backplate which looks pretty nice. Black wouldn't exactly go with your nickel theme though. Something else you will need to address is that once the stock cooler is removed you are going to need new power cables. My card has a pair of single row 8 pin connectors on the cards PCB and while my block also came with a pair of power cables I don't trust them. They have 18awg printed on the cables but are extremely thin wires that look more like 20-22awg so I have made my own from 16awg silicon wire. I already had all the tools for making cables so just needed to find the correct single row 8 pin connectors along with the 8 pin pci-e connectors for the other end so it wasn't a problem for me. As far as I can tell you can't buy these cables ready made anywhere. This review is of the Gaming OC but has the pair of single pin connectors I am trying to describe, if you click on the
last image on this page you can see the connectors fixed to the cards backplate and if you
click on the first image here you can see the pair of sockets on the end of the PCB that these go into. Nvidia just had to mess with the power connectors!!