Just started shipping their (eyewateringly expensive) crowdsupply version https://www.crowdsupply.com/morpheans/sharpikeebo
Sources and Gerbers available so you could get a couple fabbed at JLPCB or fab of your choice fairly easily https://github.com/ccadic/sharpikeebo/tree/main/V1222
I’d be inclined to run it with an open hardware replacement for the Zero such as https://openkits.easyeda.com/project/detail/lctspi-rk3566-2g-16g


It’s a nice one.
I have a Pocket Chip somewhere standing abandoned. It was sad to see them go out.
Currently, my preferred kit originates from drone ground stations:
The downsides:
price: Pi4: 38 €, screen 65 €, WiFi 50 €, amplifier (if needed) 40 €, 5 amp USB battery bank 10 €, a separate battery bank for the amp, cells for the banks 2 € each, microSD card, antenna… the total aproaches 250 euros or even 300 if you have high standards
weight and clumsiness: loose wires waiting to get pulled out, the kit weighs half a kilo, maybe more, you better buy an instrument case to house it
But you can beam video across a bay or between mountains, just don’t get caught doing it. :) But not across a forest on flat ground.