I am considering this set up for they bag. https://shop.qrp-labs.com/qmx Powered by AA enloops in 8 or 16 battery holder. Recharge by a 20w folding solar panel. https://digirig.net/digirig-transceiver-compatibility/ Also a android phone, A library on micro SD cards, Rechargeable cr123s for toy accessories, 15 2032 batteries. Small power bank. An SDR receiver. 2 small already tuned antennas.