Two questions for you to consider:
1) Do you live in a not-for-the-long-term residence right now, like an apartment for a couple years until you figure out where you want to end up?
and
2) This guns & shooting-- are you in to it for the long haul?
IMO, once you have an established residence where you don't intend to move any time soon, it's time to quit making excuses and buy a real, large, refrigerators sized gun safe. No excuses about money or cost... you spent the money on the guns, you feed them with ammo, give 'em a real home and give yourself piece of mind. If you spend 24 hours a day at home, 7 days a week, then you can watch over them yourself with one in hand. If, however, you are a normal person, you can't be home all the time.
Buy a safe. Bigger is better. Spend whatever it takes, even if it means you push back the next gun purchase. Eat some ramen noodles for two months, that will help.