have you thought about something like this ?
https://duckduckgo.com/?q=concealed+gun+furniture&t=newext&atb=v263-1&iax=images&ia=images
I bought my son a generator on Monday. With the cold front coming Thursday, we may have power outages. We went through the Texas blackout in February ‘21, and I’m not taking chances. Thanks for your good idea, though.