Since Go Pro’s have limited battery life and we will be on the bikes for extended period of time having additional batteries is incredibly important, after lots of scouring we found that the best deals for extra batteries was through Wasabi, instead of buying an additional battery pack from Go Pro for $25 on Amazon we found we can get two batteries and a charger for $23.
Barak built his own gopro shoulder strap attachment, which you can watch on this video here.