6mm D shaft knobs for Peavey mixer & amp?

I'm getting frustrated, looking for D shaft knobs for 2 projects. They don't have to aesthetically match the OEM. They just need to fit, with indicator lines aligned as described below. Any suggestions, please?
I'm looking for eight unskirted D270 knobs for a 1990's Peavey XRD 680S powered mixer. The only exposed part of the pot is the D portion of the 6mm plastic shaft, which extends 8mm above the panel. Is that what they call 'hole-mount'?

XRD 6580S knob.JPG

And I need three 6mm D0 skirted knobs for a 2007 Peavey ValveKing Royal 8 combo-to-head mod, i.e., the chassis is bolted to a board upside down. It came with 6mm-shaft D180 skirted chickenhead knobs and I need Dzero knobs, so the pointers align correctly now that the amp is upside down. It's got panel mounted pots, so the knob has to skirt around a 12mm nut and the 6mm D shaft ends 12mm above the panel.
VKR8 knob.JPG