No, I don't.
If I were to design a guitar pedal today I would look at a digital design.
DSPs today are compact and low powered enough to fit into a hearing aid.

Ok well before i venture down another rabbit hole of things i barely understand i may as well take this current approach to it's conclusion.
I think i understand how to use the 4013 to switch the DG403 now, what i'm still confused about is what connects to Pin 12

 

Pin-12 of the DG403 is the digital logic supply VL.
Connect this to the same digital logic supply rail of the CD4013, pin-14, VDD.

 

Pin-12 of the DG403 is the digital logic supply VL.
Connect this to the same digital logic supply rail of the CD4013, pin-14, VDD.

Great, thank you! I'll try and get it up and running this evening