Read through the information on this page:
https://gunsafereviewsguy.com/
Also note: A real safe, unless you can get one from a salvage job somewhere, will be way more than $3k for one big enough to store 10-15 long guns. Hint: If it's not at least TL-15 rated, it's not a safe.
Best you can hope for is a good Residential Security Container. And get the best one you can. Johnson Safe out of Zionsville, IN makes a good RSC. And you can outfit up some
https://gunsafereviewsguy.com/
Also note: A real safe, unless you can get one from a salvage job somewhere, will be way more than $3k for one big enough to store 10-15 long guns. Hint: If it's not at least TL-15 rated, it's not a safe.
Best you can hope for is a good Residential Security Container. And get the best one you can. Johnson Safe out of Zionsville, IN makes a good RSC. And you can outfit up some