My suggestion is pretty much a system where players can buy items anywhere in the world however, there would be a fee based on how far that item is from them.

This would allow people to trade items on totems much better, while still allowing people to get out and see places if they wanted to cut down on the costs.

The fee could be something simple like 1$ per 100m travel from the trade totem to trade totem.

I think this would greatly support trade in the game.

The fee would just be removed from the game, it shouldn't goto either player.