Waypoint traveling cannot be exclusive to wizards because that limits the party options and forces all players to always have a wizard with them. Thats why it would be better if its an item a wizard makes.
It could be the other way but this is not that kind of a game. My idea wont be implemented anyway, yours has a chance of a snowflake in hell.
The items and inventory are as they are for convenience.
The ideas like yours about it can only be done with mods.
