Hehe, thought it might be but a shell of its former self…!
Thanks for the knock sensor links, some very interesting, detailed information. I can understand why you say a resistor is unlikely to fool the ECU.
I’ll probably find a suitable aluminum cylindrical 'bush' or get one machined, and welded to the inlet manifold with a captive nut on the non-knock sensor end - a) Because I'd like to use as standard an AAV engine as possible in case it goes boom (easy replacement) and b) because I'm interested to see if it works! If it doesn’t work, at least we’ll know.
The parts gathering process has begun…