I suspected this would be something Splattercat Gaming would have tried out & I was right. Not only did he do a Look At video a couple of years back, but also a 20-odd hour playthrough. He does like his trading simulators.
The interface seems very similar to Battle Brothers if you remove the Brothers and replace them with a couple of scavengers and then convert the tactical grid combat into standard cross screen combat.
What bugs me about these kinds of games, and most RPGs, is that coins seem to be ethereal.
So much effort and thought goes into getting the food thing working, making sure the being has to drink, that they carry only a human amount of equipment and tradable goods - but money is unlimited.
A couple of lanky dudes lugging around 4,500 'coins' after just a couple of tutorial missions. Even a relatively small coin, such as the old Groat, would mean that 4,500 'coins' would mean they are carrying 26kg of coins around the desert. And the guys are supposed to have a carry limit of 52kg.
It's a case of "we wanna play in a coin-world, but we're still gonna pretend everyone is using digital currency, because that's just how we roll now".