For anyone wondering, this is the type of lighting I’m looking for:
This picture isn’t showing a static mesh. It’s two box brushes creating that shape, and when I build the lighting everything looks great. The reason I want to make it a static mesh is so I can use it in a blueprint, but as soon as I convert it, all of the nice lighting disappears and the entire mesh turns black. I feel like I shouldn’t need to use Blender to fix this, since it already had the desired effect before it was converted.