Toggle backpacks would be nice and not having swords hanging off the back. The coins are already in the game but I hope it gets automatically converted into gold. Currencies can be terrible in games with already lots of loot.
As for the weight, the early but not too early bag of holding should do the trick. There is loads to pick up and it adds flavor if you can grab almost everything, despite it having no value.
The encumbrance right now is fine, the entire system with the camp and sending items there is way too convenient. A separate barrel storage would be nice though