So having spent most of the day feeling crap in bed I thought I'd achieve something by posting the latest photos the the Crunchie Boost. After blowing things up and generally taking far too long to assemble what should have been a simple circuit, I now have a power supply. It uses the LT1054 and actually works! With the standard Boss power I get 9.11V and now I have -8.31V in addition. This is perfect for the preamp section and should be ok for the tube too (though not the tube heater). Therefore, next stop - getting some crunch.