Of the two, I suppose I would be a "collector". My guns are largely tools. I don't typically modify my wrenches much. Same with my guns.
I love to build. I've done several 80% builds of various guns. I love to tinker but I don't do a lot of "mods" I've polished a few triggers using the right tools and information. I've seldom had a gun for more then 24 hours before it's apart on the bench getting a through cleaning and inspection. Thanks just the way I roll :-)
None of the above.. "Guns are tools"