You could work with different layers.
Base Case with no layer assigned to it (meaning it is still “on” Layer0) or whatever layer(s) you wish to apply for your model.
I hope you are using SketchUp Pro or at least the desktop version.
Without geolocationg your model, create two extra layer:
Location Terrain (this will trigger the button ‘Toggle Terrain’. Also assign a shortcut key to the button’s operation).
Location Snapshot
Assign say Location Terrain to all groups of option 01
and
assign Location Snapshot to all groups of option 02
The ‘Toggle Terrain’ button lets you toggle between both options. Or use the shortcut key to speed up switching.
You can upload to 3DWarehouse or DropBox and share the link here.
I’m using the web version now and have no ‘Toggle Terrain’ button right now.
But you can apply what I wrote in my previous post.
I think using the toggle terrain option, while a useful, advanced technique, is more than needed here.
Just getting your various parts assigned with layer tags so you can turn them on and off would be a good start.