Check out Youtube for how fast it is to break into cheap safes..Buy American, buy one with a re-enforced striker plate behind the locking mechanism so they can't punch the locking bar. Make sure you have at least 6 locking bolts and try to find one that bolts through top and bottom also. $1000 won't get you far with a true American Safe, but if you are good with a cutting torch or know someone who is, you can search the want adds for old safes that Grannie wants to get rid of after Grand-Pa passed 20 years ago. My friends and I have salvaged many a fine old safe this way. The bottom is the weakest point in any safe. Cut an opening in the bottom of the safe, crawl in, remove the inner panel, usually several bolts, detach the locking latch and open the safe. reseal the bottom, reline the interior, buy a new lock off ebay for 35-100 bucks and your in business.
Also, if you have a true man cave with torches, pry bars, drills, hammers and such, lock the valves and torches in the safe also. Bolt the safe to the floor w/ 6-10" lag bolts and epoxy.
Any safe can be had if there is time. Check out youtube...
Mike