The most important thing for the inventory management right now, I feel is to add a "mark several items" tickbox function. I just found the trader in the Underdark, went to camp and collected the hundreds of items I had in stash, then selling and re-sending remaining items to camp was a bit horrible, hadn't I loved the game so much, I think I would've given up ^^ To right-click and "Send item to camp" like a hundred times isn't the most fun I've had in gaming ^^
Maybe you could find a trader that comes and lives in your camp (like Sandal and what's his name in Dragon Age), and maybe you could fast-sell items for a low price directly to them from inventory, like a stolen goods thing? Or maybe they're already meaning to add a trader like this in the final game. And maybe someone else brought this up, haven't read through all the comments
Keep up the good work, you beautiful Belgians! <3
