By any means this is not a difficult project, but I keep reaching set-backs: untraditional circuit diagrams, missing parts, broken soldering irons, annoying PCBs. However, I’m making some awesome headway! Only parts missing: C1, C3, C4, J1, J2, and the LEDs (which will have to wait). Here’s a photo of the updated board, and another link to the tehnik page. Cheers!