Jez,
As Eric suggests, if you can't obtain the Clickbond just do the normal type of nutplates with rivets. Having just removed my rudder pedals to start covering the bottom of the fuselage I was careful to watch that none of my Clickbond nutplates came loose (none did). Since they don't need to be beautiful this is a good place to learn squeezed rivets.
I wouldn't say that just because you Hysoled (and yes, I consider it a word) that you could torque all you want. I understand what it is you're trying to do but just stick pretty close to the build manual and you'll appreciate the final product. Did I just say that? Huh.
As for Eric's other comment about the hole size to use with a floating nutplate, I specified literally thousands of those in my last job. I have the exact specs at home (about 1400 miles from me right now) so I can come up with the drill size to use in 11 more days, but if you make a hole exactly 0.030" larger than the screw size if will ensure that the screw hits the edge of your drilled hole before the nutplate runs out of 'float' (which would be bad). You want your metal structure to take any side load. The nutplate is only there to squeeze the pieces together.
Those nutplates he refers to are called "single lug". You could use them everywhere if you want. They're not weaker than the "normal" kind.
Instead of working on my Kitfox, I'm having to endure this kind of stuff:
PXL_20220920_173008608-01.jpg
I can't believe I get paid for this.