DIY Tesla Power Wall for Cheap - $600.
I'm stoked about Elon's power wall. Right now it's at $3,000 to $3,500 depending on what model you get and that doesn't cover installation and getting permission from your local government and power provider. But the more these get bought and used, the cheaper they become and the more pressure is on local government to accept them.
One of the things, as we capitalists know, that drives cost down and quality up is competition. Right now, Elon doesn't really have any competition. Except maybe this guy!
He claims it is a $300 power wall but it is also half the power - so you need two, or $600.
But for a minimal electrical use cabin situation, that 4.4Kw battery may be more than enough to keep the lights on, and not just the ones inside, but security lights and motion detectors outside, as well as microwaves and other modern conveniences like a CPAP machine. It is CERTAINLY enough to run your coms, especially if you run a 12v tap off of it to go straight into the radio. You could even scale this way back for a portable unit next to your tent if you are going lean and mean.
See if it tickles your fancy. He has a lot of great videos to baby step you through this.