I would move your guns to the garage, slowly start moving your bed and television out there, then get a small fridge and a hotplate, Why not move into the garage with your guns, seems win win. But don't ask for permission to hang out there just start spending longer and longer spans of time out there.
Then when it is time put up a address number on the outside wall next to the door, a nice little awning would be cool with a welcoming mat, maybe an old golden lab to sleep out front.
Find a nice girl, get married have her move in, have a couple of kids.
Before you know it your mother will regret not letting you have guns in the house.
BTW what does Dad say?