A few photos of my build. I’m calling it finished but I already have a few mods in mind. Since my last post i have got the bed working - 10mm cast aluminium with 3 point levelling and it is working really well. It’s bulletproof flat although it takes quite a while to cool down after a print so might look for a removable build surface. Initially the bed moved a bit. The cause was play in the LM10LUU linear bearings which I got from Robotdigg. I got the rods from Misumi so I ordered new bearings from them and they are perfect - just tolerance differences.
Duet wifi is fantastic. The interface is great and the printer is quiet apart from the blower/fan so might look to modify cooling to dual noctua fans or some other mod - ideas welcome!
Have also fitted Gates GT3 2m belts to X/Y.
Benchy at 0.16 layer height, 45mm/sec. Still workining on optimising speed/retraction/coast settings etc but really happy. Thanks again to all who offered advice along the way.