This is a slightly different hybrid MKII than I have previously seen – this is a Sola Sound MKII built by D*A*M, referred to as the Black Fish Skin version by Macari’s Music.  The PNP Silicon transistor is a PNP version of a BC109 / BC108.

I couldn’t see the value of one resistor on the photos, so a safe bet would be to try something in the usual range for a MKII, and see how it goes – adjust to taste.  The 10k on the base of Q1 might need to be 100k if you use a different transistor, which is normal for a MKII.

SOLA SOUND TONE BENDER MKII PROFESSIONAL – 0.15″ VERO LAYOUT