One of our members is in the safe business, hope they chime in. I've been out of the loop for a bit, after "retiring" from a former life.
The Jewelers safes, Like Tann, and others that are high rated TR/TL by UL can run an easy 20K. These have time locks (you DO want more than one), spl combo dial (s) and Key lock (s). Some people use the "day safe method". Getting in and out throughtout the day just key lock(s). You see some systems require two persons with two different keys are required to be present at the same time in order to operate.
Used safes can be found, just have to contact the Corp office , usually best.
These also have glass inserts that in the event some monkey starts banging away or uses a burning bar--safe locks down tight--then you call a safe person--The company safe guy whom knew the companies safe -took 8 hrs to retrieve my mdse once after attempt.
I dropped 60 K on one safe, spent 5Ok for a just a door for a walk in I had built. Then I had to put an O2 tank in it in case staff was locked in during an armed robbery and ran out of air. Put in a hidden phone line too. ( before cell phones and 911)
These safes were kinda hard to conceal, but we did the best could. By nature of business it was kinda hard to conceal fact we had a safe. Not easy to deny and play stupid. Thats why any pro that knew what I /we used and the difficulty to get into without safe locking down would chose the easy way--Kidnapping.
I and others had to watch six, be careful of us, spouses, kids, any family being kidnapped. Take us in-- wait for timelock and take mdse. Don't imagine after the mdse taken much need for me after getting the darn thing open...not for a couple of million in mdse anyway.
Thats why I suggest low key when in public about guns, safes, security measures. Doesn't take a rocket sceintist to figure out or suspect a gun collection with decals, Brandxxx range bags and tactical looking gear...someone will pick up on it.
Hiding anything of value...hey the BG's been using metal detectors for ages to detect hidey holes...who do you think "prompted" getting detctors improved, better, smaller and accurate, Bg's , of course.
I assited with a "friend" , came home from vacation, alarm by-passed ( easy to do) and using sledgehammers , took the wall safe with 100K in jewelery from the safe hidden behind the painting.
All this security stuff does is keep an honest man honest. Pro's are called Pro's for a reason.
I cannot describe the feeling of seeing one safe taken , another $50k safe destroyed, and 2 million + taken in mdse. Sick, anger, just really don't describe the feeling. At least nobody got hurt, no kidnap attempts...those are tough...especially when kids are the target.
Explains why I have carried long before CCW, had guns scattered around and kept extra gun in trunk of vehicle. Defensive driving and street racing comes in handy to.
What guns? Guns are evil dude.