Just a quick update from me, having asked the question in the first place (after the various side roads that the thread has drifted around!).
I have bought some cones for 42mm spoked wheels from Smoothride, so that should make it more straightforward for getting the wheels balanced at any decent tyre place.
I will take my big custom socket for removing the hub nuts, given that I don't want just anyone whacking the standard spanner with a big hammer.
I have no intention of trying to adjust any of the spokes and messing up the tubeless sealing system.