How can I achieve a safe zone (PVP free) in ARK?

I am the administrator of a non-official PVP server. I've installed the Capitalism mods and our intention is to create a market zone in a specific position of the world map. Using the Capitalism mods a player can buy and sell resources from default market places, and a player can put him own market place to sell him items and dinos.

For all this, that zone must be a safe zone (PVP free) to avoid unwanted players from raiding the market structures and dinosaurs.

I'll ask for suggestions from experienced administrators about which would be the proper way to achieve this feature, maybe setting a specific value in the server config .ini files, or maybe using a 3rd party mod to prevent PVP in that zone.

I haven't seen a perfect solution for this yet, but you could cluster your main server with one of the very small maps like the Event Arena and make the small map the Market.

I keep my eyes peeled for good solutions for this very question because having good people of both types around is fun and it is fascinating working out how to keep something like this alive and thriving. You could experiment with PVE market events but I haven't experienced it yet, I've only played on PVE servers with PVP events.