The N.E.W. DIY HM-2 is the classic circuit, with additional clipping options as well as the choice to make the "hi color mix" the original single knob for both mid and treble, or to split mid and treble to their own pots.
This kit contains all necessary parts, including the pcb: Parts list
Knobs for the pots are not included in the kit, you can select them yourself. The pots have round 6.3mm shafts.
Here´s the build documentation: