Thanks for the link DrD, Sheldon is like the messiah when it comes to wheels!
Here are some photos of the final build. No caliper as I mainly wanted to measure the position of the disc with regards to the frame. 4mm. Same distance I measured on my other unis with in-board disc!
Mad4One has caliper tabs on both sides of their frames, I wonder if I can fit a 32" wheel in a 29+ frame…