I have three gun safes,The first is a 5 foot tall 32 inch wide converted jewlers safe.the second is the biggest ,It is 6 and half feet tall and it is 44 inches wide ,double door jewlers safe.
the last one is a 5 and a half foot tall,50 inch wide old jewlers safe,mossler.
I found out I can buy an older jewlers safe for about 500.00 bucks or less and convert it very easy.
You take and line the inside with 3/4 inch plywood,build a box and slip it into place and then use self tapping screws to secure the plywood to the inside of the safe.
Then you line the inside with indoor outdoor(very thin) carpet.
Next you need to install golden rods to keep out
the dampness.
The reason for the plywood is it makes it easy to install hooks and racks.
When you drill into the safe through the carpet for the shelves or racks make sure you burn the carpet where you drill,otherwise the carpet will unravel and run,use a small
soldering Iron to fuse the carpet before you drill.
If anyone here needs any help with one of these just send me instant message.
John
Look in the local papers and ask around ,alot of times people will give you one just to get rid of them.