Things are slower with the new lock-down and travel restrictions. But I was able to move on with the battery terminal covers.
I'm mimicking the original Nissan ones, albeit using MDF as insulation (3D printing was too expensive) and 5mm aluminium bus bars (copper laser cutting was too expensive too).
This was the plan:
However, I was only working with the bus bars and terminal covers visible and I forgot to check the clearances for the MDF sheet :D
This will not fit between the two long metal bars as is. Nothing a small saw and elbow grease won't fix. Live and learn...
Other than that, it's coming out alright: