you may want to visit a commercial safe store and see if they have any used TL30 rated safes for sale
a decent used commercial safe it a quantum leap in security over almost all gun safes sold.
a TL30 safe in good used condition can frequently be purchased for $3000-$3500 , and if you check most of the BETTER gun safes have less than a 1/4" steel outer body, some insulation (dry wall) and an inner 1/16" steel
yes the door and frame may be significantly more substantial, but an experienced thief will know the difference.
a commercial safe generally has thicker steel and its filled with special concrete and frequently a mesh of hard re=bar, and matrix of hardened steel rods in the 2"-4" void between the inner and outer walls
these safes can easily weigh over twice to three times what the better gun safes weigh and generally will require special tools to move,
like a special pallet jack,
once bolted to the floor with several 6" 5/8" red head expansion bolts they are not easily moved,
but the safe company can usually supply experienced installers with the correct tools for an additional charge or they may include installation in the cost of the safe,
if the area you want it installed is reasonably accessible (garage or at least easily accessed first floor ?)
https://www.safeandvaultstore.com/products/safeandvaultstore-3524bl-tl-30-two-hour-fire-safe-3524bl?variant=28540282765&utm_source=google&utm_m edium=cpc&adpos=1o2&scid=scplpshopify_US_795430720 1_28540282765&sc_intid=shopify_US_7954307201_28540 282765&gclid=EAIaIQobChMIi4ykpPzH4AIVFHdeCh3J_gmSE AQYAiABEgKfePD_BwE
http://garage.grumpysperformance.com...26/#post-77046