Straight up copy the Stronghold and Bi-Frost system from Lost Ark. All vendors and stash is next to you as soon as you Portal in. Unless you invite players to your Stronghold, it is a personal Stronghold so no other Stashes you have to worry about.
- You would have Herbs and Mining Nodes you automatically Harvest Daily.
- Mysterious Vendors would visit your Stronghold with Rare Wares Daily. This would be everything from Rare Crafting Materials, Cosmetics, Elixirs, Incense, Rare and Legendary Items.
- Customize your Stronghold and Invite others to visit.
- Acquire Daily Quests to advance your Stronghold and acquire large Gold bonuses.
Allow players to set Bi-Frost Portals allowing you to Fast Travel to certain areas you have visited in the Open World.