You’re a star! Not only had I left the ground lead out, also I had wired the 1.5k and the 68k both to the right input lug and left the left lug with only the 1 meg resistor connected to the right one. Rewired correctly now and wayward voltages gone.

Touching the input tip causes buzzing even with the vol turned down only turning tone down as well silences it. Will check all the pot wiring again now.

Thanks for your help man! Lifesaver (literally..)