My suggestions as a fellow GK fan:I’m honestly pretty open. Since changing up my head and cab, I’m pretty much starting fresh again with tones. I went from Aguilar AG700 with a GS212 to a GK 400RBiii and a GK212 neo. I still have my Darkglass B7 Ultra, but it’s got a pretty specific use anymore. It doesn’t really factor in to my normal setup. A muff style fuzz would be pretty awesome I think, but I’d be more open to suggestion than set on any one fuzz.
Pork Loin for OD (DOD 250 for another flavor)
Pharaoh (Supreme if possible) for Fuzz (Carcosa is good, and also affordable, too).
I like the idea of Rats, but so far only the Iron Pig has worked. The Volt Thrower was pretty good, but the IP won for me.