I got a Zanotti panel safe, you can put the pieces together places that a welded safe cannot go. It's definitely easier for one person to move. Construction site safes can be found cheaply and are better than a cheap gun locker.
I have a Zanotti, too, and like it. Apparently many others like them too; my order was in a three+ month backlog for construction and delivery. And now that I have a shot at getting a job in VA that will get me out of MD, I'm really glad I invested in a safe that will be easy to move.