This build looks awesome! Great work!
Wherever you have to cross balance wires over like this:
My understanding is that it’s best practice to create a bridge out of fishpaper to ensure no chances of rubbing through the wires. I have also heard that the insulation on LLT BMS’s is pretty tough and here specifically isn’t terribly likely to be a problem too quickly but it’s worth knowing about anyways, there’s a few good examples of fishpaper bridges here