OK, I just went through this say like 10 months ago. I am relocating to Savannah, GA, and I did not want to move my 30 gun Browning, and #2 son needed a safe.
So, I posted here, and got lots of answers. First, buy bigger than you need right now. Trust all that tell you this. Next, do you want fireproof?
Now, you have settled size and fire rating. OK, new or used? There are lots of used ones around, and they are like pianos. Big and heavy to move, but a few hundred will get one delivered. I did not have the luxury to window shop the used market, so I went new.
Oh, one other thing, mechanical lock or electronic. There is no doubt in my mind that you want Sargent and Greenleaf mechanical.
I looked around, and most everything on a sales floor was electronic locking, and ordering was LONG term.
I found Zanotti Armor in Iowa. They supply a modular safe, USA made( they make it), and it is a slick system. I bought a 30 gun, 6" high with finished interior. About 2900, plus 350 COD shipping. They only use 1 shipper. Unit showed up, they unloaded it with pallet jack and put it in garage. I hired 2 local guys to help move the parts and set it up. Comes as 6 pieces and assembles perfectly in 30 minutes. A second one would take 20 min..
Mine weighs 650 lbs and has mechanical lock and humidifier. 8 week delivery from time of order. At the time they had a special on the deluxe interior option for no charge. Quality all the way.
Check em out on the web. PM or email me if you want more info