Well, tried to tap a new wire in today to no avail, but it did help shed some light. CEL came back pretty fast.
The new wire was soldered to the knock sensor harness as opposed to the engine harness, which was done for this situation; if the code came back (which it did) then we know for a fact the problem would lie in the KS harness since the wires connecting from there to the ECU are completely out of the equation (or could be the sensors themselves, but given that the waveforms were almost textbook, and the harness is much more inclined to giving out, I'll take the cheaper route.) I'm forced to take it down to the manifold again, but at least now I know which "half" the problem lies on.