It doesn’t matter what tools you use, but how well you can use the tools you prefer.
Whether that’s Blender, Max, Maya, LightWave, SketchUp, AC3D, Rhino, Houdini, you name it.. If you don’t know the tool, you won’t produce well.
If SketchUp is your thing, go with it!
I on my hand will focus on how to get models in the game first. Then I’ll start thinking of making mods.