DIY Bus Comp kits?

[Alva Goldbook]

Hi, I’m looking to build a SSL style bus compressor, ideally as a kit, but I’m fine sourcing parts. I only know of the Gyraf version. Is there a more updated version, ideally with a side chain HPF?

 

[oongbac]

How about this project?

https://groupdiy.com/threads/gssl-20th-anniversary-edition.88092/

 

[oongbac]

And diyre's G bus also has sidechain filter and mix feature. That is a kit.