Get some magnets, get some Goop [the mighty Goop glue] and some industrial plastic bins and go to work on customizing your totes. You can glue the magnets to the tote or into individual plastic bins etc etc, you can glue bins into the tote they come in many sizes.
Do a search for 'Schaller bins', they are made for industrial use i have a bunch of em and they do in fact stand up to oil and at least some solvents.