Well the bending helped slightly, but I have found that the action has improved over the last few days. Maybe the neck just needed to be under tension for a while. I also lowered the nut by 2mm, which made a big difference. I think I am going to call this build complete.
So what is my next build going to be? I had a 335 clone when I was young and I quite fancy those. I have also lusted after a Les Paul, so watch this space. :-)