You need more stuff.
First, and most important, a set of air clamps for the slider from Airtight Clamps. It will enhance the accuracy and versatility of your slider.
Second, forget the Fritz and Franz, buy a set of parallel guides. I like the ones from Lamb Toolworks.
Third, think about upgrading your fence to DRO. It's a game changer.
And yes, you have plenty of storage space to add these few accessories....
Mike