Space is critical here. Zoe sits in the middle, the LiPo hangs underneath, and the 5V battery bank is on top. Both batteries have a neoprene non-slip mat between then and the frame, and double sided velcro strips to tie them tightly to the frame. It’s the placement of the battery bank on top which has forced me to remove the canopy pillar; this was the only suitable place for it.
Here’s Zoe with her PiZero installed and the LiPo slung underneath:
Next step is to add the filled PCB on top. Sadly, Christmas has ground the UK postal service to a halt. Hopefully it will arrive today, fingers crossed.