Inspired by this post: Zotac 3080 Holo feat. Noctua NF-A9 : ZOTAC (reddit.com)
I designed a plate which was produced by Schaeffer AG in 1,5mm powder-coated aluminum.
On the picture you can see the prototype mounted on my 3080 Ti.
It also fits the Zotac 3080 Amp Holo, which uses the same heatsink.
It fits 3x 92mm Noctua fans. You will also need a 4-pin GPU-Y-Splitter cable and a simple 4pin GPU to PWM adapter cable:
The plate mounts on the original heatsink with the original M2,5 screws.
The author hasn't provided the model origin yet.