For the safe, truly get a bigger one as Colby stated.
Liberty Lincoln is a decent unit, good size and a good value.
While fancy locks are great and all, they will keep a lock picker busy all night.......... the guy with a torch is simply going to OPEN the safe, and not pick it.
I recommend looking up videos on gun safes. And, go to a couple Lock& Safe companies. Do NOT go to a gun store to look for a safe, expecting the safe they sell to really be the best unit.
Now, consider what you are locking up. What is the real value? If you have the original AR 10 made by Stoner himself, then buy the baddest safe on the block. If you have an average collection of rifles, and their value is not really significant? Why get a $10k safe to lock up $3k in equipment?
All safes only keep out the honest people. Tommy Lee and Pam Anderson had their safe ripped out of a socket hole in their garage that the safe was set into- so no dolly nor forklift could get under it.
When a safe is wanted, it will get taken. PERIOD.
Another thing to consider, and I do recommend this to folks when I am doing a remodel for them: A safe that screams "Guns and jewelry inside!!" will draw attention. A nondescript box looking thing will be much, much more sedate and mundane. I try to hide them for customers. Certain safe manufacturers will have units that accommodate false panels and skins more than others.
We installed one into a garage where there was 3 big SS freezer/ refers. Well, 2 were freezers. One was a safe. You would never know, as the temp gauge was on the front and it said the meat inside was 31degrees. It just..... would not open, so you could not steal a steak!

My collection is not the stuff of a safe like that, so I use a simple unit masked by some simple cabinets.