Thanks folks. She's been pretty hotrodded now. Quite a lot of differences from when I first took it home back in '95. And I keep getting happier with it.
Still need to figure out whether these weird volume fluctuations I'm getting are my signal chain or the guitar's wiring. Might need to go back in for a tweak if it's the latter.
And definitely I'm going to upgrade the pots and caps sometime. My Tokai's made me aware of how much more control you have over your tone on a Les Paul with high quality components stuck in the back.
Not 100% sure about the knobs. They're relatively cheap knobs and I might go for some nicely aged gold bell-knobs or possibly black reflectors like you get on early '60s SGs and 335s:
Might look the business.