Ok.
A: Marine band, on land, is asking for trouble if it's not a total SHTF situation. Do people use it YES is it legal NO
B: JAB... a prc-126? Issue A: not in any legal band for use by civvies Issue B: they fucking sucked when maintained in the military!!! lol
C: motorola commercial VHF/UHF units are great, but are VERY proprietary in nature of accessories, programming, etc. 99% of the time they aren't even field programmable and need special hardware and computer software to be able to program. Stay away.
Legality is an issue because the simple fact is that if you can't legally use it every day, or at least once a week, you will not have the practice, skill, and understanding required to be able to get that little 5w radio talking the distance you want.
Hence why I tout Amateur radio as the best solution. A technician license is allowed full use of the 2 meter (144 mhz-ish) band, 70cm (440 mhz-ish) band, as well as limited carrier wave usage on High Frequency. My wife crammed by my order (her answer being she did it because caving and doing it was tolerable compared to my incessant nagging) and passed her technician license with no previous radio experience whatsoever.
FRS/GMRS handhelds like motorola talkabouts are pretty sketchy as the Troll found out. Major issue with our vehicular comms on my departure day from Washington? X_SF_MED was trying to transmit and recieve with a half watt output radio, inside of a faraday cage aka vehicle. I have external antennas on my blazer and my silverado for use with my dualband radios. The other issue is that FRS radios are locked to specific channels and typically cannot interface with any external antenna.
External antennas are the KEY to being able to transmit worth a fuck. I can take my 5 watt output Yaesu VX7R radio, hook it into my handheld directional antenna, and be able to do satcom on amateur sats... and to be honest, if they were still up, I can even piggyback on mil satcom birds, but that would be occurring due to "An Event" that really put the shit-hit-the-fan meter through the redline. As it is, I've done the range you want with my handheld. It's all in the antenna. Radio in general is 60% antenna 10%radio 30% operator driven.
Get your technician license and get some VX7R radios. they are very capable little 5 watt handhelds, smaller than any of the other radios out there, great battery life, and accept external antennas. You can even put hardmount external antennas on your vehicles and use them with the handheld to great effect, and simply tie a handheld into it. Down the road, get a full bore mobile unit for the vehicles and take your handhelds back. Charging them? As long as you have 12v you can charge them. My small 800w genset has a 12v output, I have a 12v power supply for use with my base station, and you can get 12v solar panels that will put out enough amperage to charge them if you want to go that route.