https://buildyourownclone.com/collectio ... pass-boardWe're out of stock at the moment, but I'm sure someone else makes a similar relay kit. You could use the existing momentary switch to turn something like this on and off, instead of drilling it and using a 3PDT.
And as for the 2 extra pot holes, you could use some washers to narrow their diameter, and mount toggle switches. If you end up building the DOD250 circuit, you could use one toggle to change clipping diodes, and the other to change the bass response cap.
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*patience is a virtue*
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