Mikie, here is the one I bought both of my boys at Costco for about $150 each:
| Sentry® Safe | DSW5781 Electronic FIRE-SAFE®
sold out in no time. Small, inexpensive. I drilled base, 2 holes and bolted to floor about 5 inches down in concrete. Safe didn't weigh a lot, maybe 150 lbs, but secure for water and fire for short periods. Should be enough to delay or discourage entry.
AZ Bob